信號(hào)分析處理matlab

1、武漢理工大學(xué)信號(hào)分析與處理課程設(shè)計(jì)說(shuō)明書(shū)目錄摘要 1Abstract 21模擬通信系統(tǒng)簡(jiǎn)介 31.1模擬通信系統(tǒng)概念 31.2相位調(diào)制與解調(diào) 31.3 SIMULINK 32調(diào)制與解調(diào)原理分析 42.1調(diào)相信號(hào) 42.2 調(diào)制原理 52.3 解調(diào)原理 53函數(shù)實(shí)現(xiàn)的仿真 73.1M文件源代碼 73.1.1傅里葉變換的子函數(shù) 73.1.2求信號(hào)相角的子函數(shù) 73.1.3產(chǎn)生調(diào)制信號(hào)的正交分量的子函數(shù) 73.2主程序文件源代碼 83.3程序運(yùn)行結(jié)果 錯(cuò)誤！未定義書(shū)簽。4 SIMULINK實(shí)現(xiàn)的仿真 94.1所用模塊及參數(shù) 94.2 仿真結(jié)果 125心得體會(huì) 146參考資料 16附錄：本科生課程設(shè)計(jì)

2、成績(jī)?cè)u(píng)定表 18武漢理工大學(xué)信號(hào)分析與處理課程設(shè)計(jì)說(shuō)明書(shū)摘要模擬信號(hào)是指信息參數(shù)在給定范圍內(nèi)表現(xiàn)為連續(xù)的信號(hào)，或在一段連續(xù)的 時(shí)間間隔內(nèi)，其代表信息的特征量可以在任意瞬間呈現(xiàn)為任意數(shù)值的信號(hào)。模擬通信是一種以模擬信號(hào)傳輸信息的通信方式。非電的信號(hào)（如聲、光等）輸入到 變換器（如送話器、光電管），使其輸出連續(xù)的電信號(hào)，使電信號(hào)的頻率或振幅 等隨輸入的非電信號(hào)而變化。利用信號(hào)的調(diào)變技術(shù)，可以將信號(hào)轉(zhuǎn)換成所需要的 不同性質(zhì)的模擬信號(hào)。例如，可以對(duì)正弦載波進(jìn)行調(diào)幅、調(diào)頻來(lái)達(dá)到特殊的工作 目的，本文主要描述模擬信號(hào)的相位調(diào)制與解調(diào)方法。關(guān)鍵詞：模擬信號(hào)模擬通信相位調(diào)制解調(diào)2AbstractAn alog

3、 sig nal refers to in formatio n within the give n range of parameters showed a continuous signal, or over a period of successive time intervals, which represents the amount of information can be presented as a signal feature of any value at any mome nt. An alog com muni cati on sig nal is an an alo

4、g tran smissi on com muni cati on method in formatio n. Non-electric sig nals (such as soun d, light, etc.) is in put to the in verter (such as a microph one, optical tube), so that a con ti nu ous electrical output, freque ncy or amplitude of the electrical sig nal and other non-electrical sig nal

5、that varies with the in put. Using the sig nal modulati on tech no logy, the sig nal is conv erted into an analog signal different nature required. For example, a sinusoidal carrier amplitude modulation, frequency modulation to achieve specific work purposes, phase modulation and demodulation method described in this paper, the analog signal. Ke