齊魯醫(yī)學(xué)EMC專業(yè)術(shù)語英漢對(duì)照

1、精品醫(yī)學(xué)文檔 精品醫(yī)學(xué)文檔 18/18精品醫(yī)學(xué)文檔 EMC TerminologyEMC專業(yè)術(shù)語BASIC CONCEPTS 基本概念Electromagnetic environment: The totality of electromagnetic phenomena existing at a given location.電磁環(huán)境：存在于給定場(chǎng)所的電磁現(xiàn)象的總和。Radio environment: The electromagnetic environment in the radio frequency range.The totality of electromagnetic

2、fields created at a given location by operation, of radio transmitters. 無線電環(huán)境：無線電頻率范圍內(nèi)的電磁環(huán)境。在給定場(chǎng)所內(nèi)處于工作狀態(tài)的無線電發(fā)射機(jī)產(chǎn)生的電磁場(chǎng)總和。Electromagnetic noise: A time-varying electromagnetic phenomenon apparently not conveying information and which may be superimposed or combined with a wanted signal. 電磁噪聲：一種明顯不傳送信息

3、的時(shí)變電磁現(xiàn)象，它可能與有用的信號(hào)疊加或組合。Natural (atmospheric) noise: Electromagnetic noise having its source in natural (atmospheric) phenomena and not generated by man-made devices.自然（天電）噪聲：來源于自然（天電）現(xiàn)象而非人工裝置產(chǎn)生的電磁噪聲。Man- made (equipment) noise: Electromagnetic noise having its source in the man-made devices人為（設(shè)備）噪聲：

4、來源于人工裝置的電磁噪聲。Radio frequency noise: Electromagnetic noise having components in the radio frequency range.無線電頻率噪聲：具有無線電頻率分量的電磁噪聲。Electromagnetic radio noise: The total electromagnetic disturbance complex in which an equipment, subststem, or system may be immersed exclusive of its own electromagnetic

5、contribution.環(huán)境無線電噪聲：可浸沒任一設(shè)備、子系統(tǒng)或系統(tǒng)的全部電磁騷擾的合成，其中不包含Narrowband radio noise: Radio noise having a spectrum exhibiting one or more sharp peaks, narrow in width compared to the nominal bandwidth of, and far enough apart to be resolved by, the measuring instruments (or the communication receiver to be pr

6、otected). 窄帶無線電噪聲：頻譜顯示有一個(gè)或多個(gè)尖峰且寬度比標(biāo)稱帶寬窄的無線電噪聲，其標(biāo)稱帶寬離測(cè)量?jī)x器（或已防護(hù)的通信接收機(jī)）可分辨的帶寬足夠遠(yuǎn)。Narrowband radio noise: Radio noise having a spectrum broad in width as compared to the nominal bandwidth of the measuring instrument, and whose spectral components are sufficiently close together and uniform that the meas

7、uring instrument cannot resolve them. 寬帶無線電噪聲：頻譜寬度比測(cè)量?jī)x器標(biāo)稱帶寬寬的無線電噪聲，其譜分量之間相距足夠近而且均勻，以致測(cè)量?jī)x器不能分辨它們。Electromagnetic radiation: The phenomenon by which energy in the form of electromagnetic waves emanates from a source into space. Energy transferred through space in the form of electromagnetic waves. (By

8、 extension, the term radiation sometimes also covers induction phenomena.)電磁輻射：能量以電磁波的形式由源發(fā)射到空間的現(xiàn)象。能量以電磁波形式在空間傳播。（電磁輻射一詞的含義有時(shí)也可引申，將電磁感應(yīng)現(xiàn)象也包括在內(nèi)。）Electromagnetic disturbance: Any electromagnetic phenomenon that may degrade the performance of a device, equipment, or system, or adversely affect living o

9、r inert matter. (An electromagnetic disturbance may be electromagnetic noise, an unwanted signal, or a change in the propagation medium itself.) 電磁騷擾：任何可能引起裝置、設(shè)備或系統(tǒng)性能降低或者對(duì)有生命或無生命物質(zhì)產(chǎn)生損壞作用的電磁現(xiàn)象。Radio frequency disturbance: An electromagnetic disturbance having components in the radio frequency range.

10、無線電頻率騷擾：具有無線電頻率分量的電磁騷擾。Unwanted signal: undesired signal: A signal that may impair the reception of awanted signal. 無用信號(hào)：可能損害有用信號(hào)接收的信號(hào)。Interfering signal: A signal that impairs the reception of a wanted signal. 干擾信號(hào)：損害有用信號(hào)接收的信號(hào)。Degradation (of performance): An undesired departure in the operational

11、performance of any device, equipment, or system from its intended performance. (The term degradation can apply to temporary or permanent failure.) （性能）降低：裝置、設(shè)備或系統(tǒng)的工作性能與正常性能的非期望偏離。（術(shù)語性能降低可用于臨時(shí)性或永久性失效。）Electromagnetic interference (EMI): Degradation of the performance of a device, equipment, or system

12、 caused by an electromagnetic disturbance. 電磁干擾（EMI）：電磁騷擾引起的設(shè)備、傳輸通道或系統(tǒng)性能的下降。Radio frequency interference (RFI): Degradation of the reception of a wanted signal caused by radio frequency disturbance. 無線電頻率干擾（RFI）：由無線電騷擾引起的有用信號(hào)接收性能的下降。Digital device: information technology equipment (ITE) , that fails

13、 into the class of unintentional radiators, uses digital techniques and generators, and uses timing signals or pulses at a rate in excess of 9000 pulses per second. 數(shù)字裝置：一種信息技術(shù)設(shè)備（ITE），屬于采用數(shù)字技術(shù)和發(fā)生器一類的非故意輻射器，并采用速率超過每秒9 000個(gè)脈沖的時(shí)鐘信號(hào)或脈沖。Information technology equipment (ITR): Unintentional radiator equip

14、ment designed for one or more of the following purposes:1. Receiving data from an external source (such as a data input line or a keyboard)2. Performing some processing functions, of the received data (such as computation, data transformation or recording, filing, sorting, storage, transfer of data)

15、3. Providing a data output (either to other equipment or by the reproduction of data or images) . This definition includes electrical/electronic units or systems that predominantly generate a multiplicity of periodic, binary pulsed electrical/electronic waveforms and are designed to perform data pro

16、cessing functions such as word processing, electronic computation, data transformation, recording, filing, sorting, storage, retrieval and transfer, and reproduction of data as images信息技術(shù)設(shè)備（ITE）：為達(dá)到下列一個(gè)或多個(gè)目的而設(shè)計(jì)的非故意輻射器設(shè)備：1. 接收來自外部源（例如通過數(shù)據(jù)線或鍵盤輸入）的數(shù)據(jù)。2. 對(duì)接收到的數(shù)據(jù)進(jìn)行某些處理（如計(jì)算、數(shù)據(jù)轉(zhuǎn)換或記錄、建檔、分類、存儲(chǔ)和傳送。）3. 提供數(shù)據(jù)輸出（

17、或送至另一設(shè)備或再現(xiàn)數(shù)據(jù)或圖像）。這個(gè)定義包括那些主要產(chǎn)生各種周期性二進(jìn)制電氣或電子脈沖波形，并實(shí)現(xiàn)數(shù)據(jù)處理功能的單元或系統(tǒng)：諸如文字處理、電子計(jì)算、數(shù)據(jù)轉(zhuǎn)換、記錄、建檔、分類、存儲(chǔ)、恢復(fù)及傳遞，以及用圖像再現(xiàn)數(shù)據(jù)等。Personal computer: A system containing a host and a limited number of peripherals designed to be used in the home or in small offices, which enables individuals to perform a variety of comput

18、ing or word processing functions or both, and which typically is of a size permitting it and its peripherals to be located, on a table surface. Note: other definitions given in product standards or applicable regulations may take precedence. 個(gè)人計(jì)算機(jī)：一種包含主機(jī)與有限數(shù)量外設(shè)的系統(tǒng)，設(shè)計(jì)成可在家庭或小型辦公室中使用，以便個(gè)人能夠完成各種計(jì)算或文字處理功

19、能或兩種功能兼?zhèn)?；它的典型尺寸為可將它及其外設(shè)放在一張桌面上。注意：在產(chǎn)品標(biāo)準(zhǔn)或適用的規(guī)范中給出的其他定義可以優(yōu)先采納。Peripheral device: A digital accessory that feeds data into or receives data from another device (host) that, in turn, controls its operation. 外圍設(shè)備：將數(shù)據(jù)饋入其他設(shè)備（主機(jī)）或接收來自其他設(shè)備（主機(jī)）的數(shù)據(jù)以控制其工作的數(shù)字輔助設(shè)備。Incidental radiator: A device that .produces RF e

20、nergy during the course of its operation, although the device is not intentionally designed to generate or .emit RF energy. Examples of incidental radiators are DC motors and mechanical light switches. 附隨輻射器：并非有意地設(shè)計(jì)成產(chǎn)生或發(fā)射射頻能量，但在其工作過程中會(huì)產(chǎn)生射頻能量的裝置，例如直流電動(dòng)機(jī)和機(jī)械電燈開關(guān)。Intentional radiator: A device that inte

21、ntionally generates and emits RF energy by radiation or induction. 故意輻射器：靠輻射或感應(yīng)故意產(chǎn)生并發(fā)射射頻能量的裝置。DISTURBANCE WAVEFORMS 騷擾的波形Transient: Pertaining to or designating a phenomenon or a quantity that varies between two consecutive steady states during a time interval short compared to the time scale of int

22、erest. 瞬態(tài)（的）：在兩個(gè)相鄰狀態(tài)之間變化的物理量或物理現(xiàn)象，其變化時(shí)間小于所關(guān)注的時(shí)間尺度。Pulse: An abrupt variation of short duration of a physical quantity followed by a rapid return to the initial value. 脈沖：在短時(shí)間內(nèi)突變，隨后又迅速返回其初始值的物理量。Pulse count: The number of pulses in some specified time interval. 脈沖計(jì)數(shù)：在指定時(shí)間間隔內(nèi)脈沖的個(gè)數(shù)。Impulse: A pulse tha

23、t, for a given application, approximates a unit pulse or a Dirac function. 沖激脈沖：針對(duì)某給定用途，近似于一單位脈沖或迪拉克函數(shù)的脈沖。Impulsive disturbance: Electromagnetic noise that, when incident on a particular device or equipment, manifests itself as a succession of distinct pulses or transients. 脈沖騷擾：在某一特定裝置或設(shè)備上出現(xiàn)的、表現(xiàn)為一連

24、串清晰脈沖或瞬態(tài)的 電磁騷擾。Random noise: Electromagnetic noise, the values of which at given instants are not predictable, except in a statistical sense. 隨機(jī)噪聲：（給定瞬間其值不可預(yù)測(cè)的噪聲。）給定瞬間其值不可預(yù)測(cè)而只有統(tǒng)計(jì)意義的電磁噪聲。Electrostatic discharge (ESD): A transfer of electric charge between bodies of different electrostatic potential i

25、n proximity or through direct contact. 靜電放電（ESD）：具有不同靜電電位的物體相互靠近或直接接觸而產(chǎn)生的電荷轉(zhuǎn)移。Surge (surge-protective device): A transient wave of current, potential, or power in an electric circuit. 浪涌（浪涌防護(hù)裝置）：電路中的電流、電勢(shì)或功率瞬態(tài)波。Swell: A momentary increase in the power frequency voltage delivered by the mains, outsid

26、e of the normal tolerances, with a duration of more than one cycle and less than a few seconds. 隆起：干線傳輸?shù)碾娫搭l率的電壓瞬間增大，超出了標(biāo)準(zhǔn)公差、持續(xù)時(shí)間超過一個(gè)周期而小于幾秒。Surge let-through: That part of the surge that passes by a surge protective device with little or no alteration. 允過浪涌：很少變化或無變化地通過浪涌防護(hù)裝置的那部分浪涌。Surge remnant: Tha

27、t part of an applied surge that remains downstream of one or several protective devices. 浪涌殘余：外加浪涌經(jīng)過一個(gè)或幾個(gè)防護(hù)裝置后剩余的部分。Continuous disturbance: Electromagnetic disturbance, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects. 連續(xù)騷擾：對(duì)一個(gè)特定設(shè)備的效應(yīng)不

28、能分解為一串能清晰可辨的效應(yīng)的電磁騷 擾。Continuous noise: Electromagnetic noise, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects. 連續(xù)噪聲：對(duì)一個(gè)特定設(shè)備的效應(yīng)不能分解為一串能清晰可辨的效應(yīng)的噪聲。Quasi-impulsive noise: Electromagnetic noise equivalent to a superposition of impulsive n

29、oise and continuous noise. 準(zhǔn)沖擊噪聲：等效于脈沖噪聲與連續(xù)噪聲的疊加的電磁噪聲。Discontinuous interference: Electromagnetic interference occurring during certain interference-free time intervals. 非連續(xù)干擾:出現(xiàn)于被無干擾間隙隔開的一定時(shí)間間隔內(nèi)的電磁干擾。INTERFERENCE CONTROL 干擾控制Electromagnetic susceptibility: The inability of a device, equipment, or s

30、ystem to perform, without degradation in the presence of an electromagnetic disturbance. (Susceptibility is a lack of immunity.) 電磁敏感性：在存在電磁騷擾的情況下，裝置、設(shè)備或系統(tǒng)不能避免性能降低的能力特性。（敏感性高，抗擾性低。）Immunity (to a disturbance): The ability of a device, equipment, or system to perform without degradation in the presen

31、ce of an electromagnetic disturbance. （對(duì)騷擾的）抗擾性：裝置、設(shè)備或系統(tǒng)面臨電磁騷擾而不降低運(yùn)行性能的能力。Internal immunity: Ability of a device, equipment, or system to perform without degradation in the presence of electromagnetic disturbances appearing at its normal input terminals or antennas. 內(nèi)部抗擾性：裝置、設(shè)備或系統(tǒng)在其常規(guī)輸入端或天線處存在電磁騷擾時(shí)能

32、正常工作而無性能降低的能力。Immunity level: The maximum level of a given electromagnetic disturbance incident on a particular device, equipment, or system for which it remains capable of operating at a required degree of performance.抗擾性電平：將給定電磁騷擾施加于某一裝置、設(shè)備或系統(tǒng)而其仍能正常工作并保存所需性能等級(jí)時(shí)的最大騷擾電平。Immunity limit: The specified

33、 minimum immunity level. 抗擾度限值：規(guī)定的最小抗擾性電平。Immunity margin：The difference between the immunity limit of a device, equipment, or system and the electromagnetic compatibility level. 抗擾度裕量：裝置、設(shè)備或系統(tǒng)的抗擾性限值與電磁兼容電平之間的差值。External immunity: Ability of a device, equipment, or system to perform without degradat

34、ion in the presence of electromagnetic disturbances entering other than via its normal input terminals or antennas. 外部抗擾性：裝置、設(shè)備或系統(tǒng)在電磁騷擾經(jīng)由除常規(guī)輸入端或天線以外的途徑侵入的情況下，能正常工作而無性能降低的能力。Limit of disturbance: The maximum permissible electromagnetic disturbance level, as measured in a specified way. 騷擾限值（允許值）：對(duì)于規(guī)定

35、測(cè)量方法的最大電磁騷擾允許電平。Limit of interference：Maximum permissible degradation of the performance of a device, equipment or system duo to an electromagnetic disturbance (Because of the difficulty of measuring: interference in many systems, frequently the term limit of interference is used in English instead

36、of limit of disturbance.) 干擾限值（允許值）：（電磁騷擾使裝置、設(shè)備或系統(tǒng)最大允許的性能降低。）電磁騷擾使裝置、設(shè)備或系統(tǒng)性能降低的最大允許值。（因?yàn)樵诤芏嘞到y(tǒng)中干擾難以測(cè)量，所以在英文中干擾限值一詞常常用騷擾限值替代。）Electromagnetic compatibility (EMC): The ability of a device, equipment, or system to function satisfactorily in its electromagnetic environment without introducing intolerable

37、 electromagnetic disturbances to anything in .that environment. 電磁兼容性（EMC）：設(shè)備或系統(tǒng)在其電磁環(huán)境中能正常工作且不對(duì)該環(huán)境中任何事物構(gòu)成不能承受的電磁騷擾的能力。Intersystem electromagnetic compatibility: The condition that enables a system to function without perceptible degradation caused by electromagnetic sources in another system. 系統(tǒng)間電磁兼

38、容性：使系統(tǒng)能夠不出現(xiàn)由另一系統(tǒng)電磁源造成明顯性能降低的條件。 Intrasystem electromagnetic compatibility: The condition that enables the various portions of a system to function without perceptible degradation caused, by electromagnetic sources in other portions of the same system. 系統(tǒng)內(nèi)電磁兼容性：使系統(tǒng)各部分都能夠不出現(xiàn)由該系統(tǒng)不同部分電磁源造成的明顯性能降低的條件。Ele

39、ctromagnetic compatibility level: The specified maximum electromagnetic disturbance level expected to be impressed on a device, equipment, or system operated in particular conditions. 電磁兼容電平：預(yù)期加在工作于指定條件的裝置、設(shè)備或系統(tǒng)上的規(guī)定的最大電磁騷擾電平。Electromagnetic compatibility margin: The ratio of the immunity level of a

40、device, equipment, or system to the reference disturbance level. 電磁兼容裕量：裝置、設(shè)備或系統(tǒng)的抗擾性電平與騷擾源的發(fā)射限值之間的差值。Earth-coupled interference, ground-coupled interference: Electromagnetic interference resulting from, an electromagnetic disturbance coupled from one circuit to another through, a common earth or gro

41、und-return path. 地耦合干擾：電磁騷擾從一電路通過公共地或地回路耦合到另一電路從而引起的電磁干擾。Suppressor; suppression component: A component specially designed, for disturbance suppression. 抑制器：專門設(shè)計(jì)來抑制騷擾的器件。Disturbance suppression: Action that reduces or eliminates electromagnetic disturbance. 騷擾抑制：削弱或消除電磁騷擾的措施。Interference suppression

42、: Action that reduces or eliminates electromagnetic interference. 干擾抑制：削弱或消除電磁干擾的措施。Measurements 測(cè)量Equipment under test (EUT): A device or system, used for .evaluation that is representative of a product to be marketed. 受試設(shè)備（EUT）：用來對(duì)市售產(chǎn)品做出評(píng)估的裝置或系統(tǒng)的樣品。Low-voltage electrical and electronic, equipment:

43、 Electrical and electronic equipment with operating input voltages of up to 600 V DC or 1000 V AC. 低壓電氣與電子設(shè)備：工作時(shí)輸入的直流電壓不高于600 V或交流電壓不高于1000V的電氣、電子設(shè)備。Conducted radio noise: Radio noise produced by equipment operation, which, exists on the power line (or signal lines) of the equipment and is measurabl

44、e under specified conditions as a voltage or current. 傳導(dǎo)無線電噪聲：設(shè)備工作時(shí)產(chǎn)生的無線電噪聲，它存在于設(shè)備的電源線（或信號(hào)線）上，并可在規(guī)定條件下作為電壓或電流進(jìn)行測(cè)量。Power line conducted radio noise: Radio noise produced .by equipment operation, which exists on the power line of the equipment and is measurable under specified conditions. Note: It may

45、 enter a receptor, such as ITE, by direct coupling or by subsequent radiation from some circuit elements. 電源線傳導(dǎo)無線電噪聲：設(shè)備工作時(shí)產(chǎn)生的無線電噪聲，它存在于設(shè)備的電源線上，并可在規(guī)定條件下進(jìn)行測(cè)量。注意，通過直接耦合或某些電路元件的二次輻射，它可進(jìn)入諸如ITE之類的接收器。Common-made radio noise: Conducted radio noise that appears between a common reference plane (ground) and

46、oil wires of a transmission line, causing their potentials to be changed simultaneously, and by the same amount relative to the common reference plane (ground). 共模無線電噪聲：出現(xiàn)在公共參考面（地）與傳輸線所有導(dǎo)線之間，造成它們的電位同步變化且相對(duì)于公共參考面（地）數(shù)值相同的傳導(dǎo)無線電噪聲。Floor-standing equipment: Equipment designed to be used directly in conta

47、ct with the floor, or supported above the floor on a surface designed to support both the equipment and the operator (e.g., a raised computer floor). 地上設(shè)備：設(shè)計(jì)成直接與地面接觸或置于地板上的設(shè)備（地板用于支撐地面上方的設(shè)備和操作人員，例如高出地面的計(jì)算機(jī)地板）。Table-top device: A device designed to be placed and normally operated on the raised Surface

48、 of a table, e.g., most personal computers. 桌面設(shè)備：設(shè)計(jì)成放置在桌面上使用的設(shè)備，例如大多數(shù)個(gè)人計(jì)算機(jī)。Differential-mode radio noise: Conducted radio noise that causes the potential of one side of the signal transmission path to be changed relative to another side. 差模無線電噪聲：造成信號(hào)傳輸路徑一側(cè)的電位相對(duì)于另一側(cè)變化的傳導(dǎo)無線電噪聲。Artificial mains network

49、; fine impedance stabilization network (LISN): A network inserted in the supply mains lead of an apparatus to be tested providing, in a given frequency range, a specified load impedance for (he measurement of disturbance voltages and possibly isolating the apparatus from the supply mains in that fre

50、quency range. 人工電源網(wǎng)絡(luò)、線路阻抗穩(wěn)定網(wǎng)絡(luò)（LISN）：串接在被試設(shè)備電源進(jìn)線處的網(wǎng)絡(luò)。它在給定頻率范圍內(nèi)，為騷擾電壓的測(cè)量提供規(guī)定的負(fù)載阻抗，并使被試設(shè)備與電源相互隔離。Delta network: An artificial mains network enabling the common-mode and differential-mode voltages of a single-phase circuit to be measured separately. 德爾塔網(wǎng)絡(luò)：能夠分別測(cè)量單相電路共模電壓和差模電壓的人工電源網(wǎng)絡(luò)。V-networks: An artifi

51、cial mains network enabling the voltages between each conductor and earth to be measured separately. (The V-network may be designed for application to networks of any number of conductors.). V形網(wǎng)絡(luò)：能夠分別測(cè)量每個(gè)導(dǎo)體對(duì)地電壓的人工電源網(wǎng)絡(luò)。（V形網(wǎng)絡(luò)可設(shè)計(jì)成用于任意導(dǎo)體數(shù)的網(wǎng)絡(luò)。）Current probe: A device for measuring the current in a conduc

52、tor without interrupting the conductor and without introducing significant impedance into the associated circuits. 電流探頭：在不斷開導(dǎo)體且不對(duì)相應(yīng)電路引入顯著阻抗的情況下，測(cè)量導(dǎo)體電流的裝置。Surface transfer impedance (of a coaxial line): The quotient of the voltage induced in the center conductor of a coaxial line per unit length by t

53、he current on the external surface of the coaxial line.（同軸線的）表面轉(zhuǎn)移阻抗：同軸線內(nèi)導(dǎo)體單位長(zhǎng)度上的感生電壓與同軸線外表面上的電流之比。Ground reference plane: A flat conductive surface whose potential is used as a common reference. 接地（參考）平面：一塊導(dǎo)電平面，其電位用作公共參考電位。Shielded enclosure; screened room: A mesh or sheet metallic housing designed

54、exclusively for the purpose of electromagnetically separating the internal and. the external environment. 屏蔽殼體、屏蔽室：專門設(shè)計(jì)用來隔離內(nèi)外電磁環(huán)境的網(wǎng)狀或薄板金屬殼體。OPEN-AREA TEST SITES開闊試驗(yàn)場(chǎng)地Standard antenna calibration site: A flat, open area site which has a metallic ground plane and is devoid of nearby scatterers such as

55、 trees, power lines, and fences. 標(biāo)準(zhǔn)天線較準(zhǔn)場(chǎng)地：具有金屬接地平面且附近沒有樹木、輸電線和柵欄之類散射體的平坦開闊場(chǎng)地。Ambient level: The values of radiated and conducted signal and noise existing at a specific test location and time when the test sample is not activated. 背景電平：受試樣品尚未啟動(dòng)時(shí)，在指定試驗(yàn)地點(diǎn)與時(shí)間存在的輻射的和傳導(dǎo)的信號(hào)及噪聲之量值。Antenna factor: Quantity

56、relating the strength of the field in which the antenna is immersed to the output voltage across the load connected to the antenna. 天線系數(shù)：表示天線所在處電場(chǎng)強(qiáng)度與天線端接負(fù)載上輸出電壓之間關(guān)系的量。Site attenuation: The ratio of the power input to a matched balanced lossless tuned dipole radiator to that at the output of a simila

57、rly balanced matched lossless tuned dipole receiving antenna for specified polarization, separation, and heights above a flat reflecting surface. 場(chǎng)地衰減：對(duì)于規(guī)定的極化、收發(fā)天線間距及距反射平面高度，輸入匹配平衡無耗調(diào)諧偶極子輻射器的功率與同樣是匹配平衡無耗調(diào)諧的偶極子接收天線輸出功率之比值。Normalized site attenuation (NSA): Site attenuation divided by the antenna fact

58、ors of the radiating and receiving antennas (ail in linear units). 歸一化場(chǎng)地衰減（NSA）：場(chǎng)地衰減除以發(fā)射天線與接收天線的天線系數(shù)（全部用線性單位）。Radiated radio noise: Radio noise energy in the form of an electromagnetic field including both the radiation and induction components of the field.輻射無線電噪聲：電磁場(chǎng)形態(tài)的無線電噪聲能量，包括場(chǎng)的輻射分量與感應(yīng)分量。Radiat

59、ed emission test site: A site meeting specified requirements suit able for measuring radio interference fields radiated by a device equipment, or system under test. 輻射發(fā)射試驗(yàn)場(chǎng)地：適用于測(cè)量由受試裝置、設(shè)備或系統(tǒng)輻射的無線電干擾場(chǎng)的且滿足規(guī)定要求的場(chǎng)地。Single-signal method: A method of measurement in which the response of the receiver to an

60、 unwanted signal is measured in the absence of the wanted signal. 單信號(hào)法：在沒有有用信號(hào)的情況下測(cè)量接收機(jī)對(duì)無用信號(hào)響應(yīng)的方法。Two-signal method: A method of .measurement that determines the response of the receiver to an unwanted signal in the presence of the wanted signal. (For this method, the detailed test procedure and the