基于fpga的fsk調(diào)制解調(diào)-展示頁
2025-01-25 13:42本頁面
【正文】 二〇XX年六月FPGA課程設(shè)計——摘要摘 要調(diào)制解調(diào)器是通信系統(tǒng)中的關(guān)鍵設(shè)備，其性能的好壞直接關(guān)系到整個系統(tǒng)的性能。經(jīng)過近兩個星期的的實(shí)驗，我們四個組員齊心協(xié)力，利用Quartus II軟件中的VHDL語言對FSK頻移鍵控系統(tǒng)就行調(diào)制、解調(diào)的程序設(shè)計。本次設(shè)計的FSK調(diào)制解調(diào)器的各項參數(shù)分別為：載頻f1=,f2=2MHz，調(diào)制信號f=1MHz。采用FSK調(diào)制方式的主要優(yōu)點(diǎn)是：①無需載波恢復(fù)，大大降低了系統(tǒng)復(fù)雜度。因為FSK信號為恒包絡(luò)信號，其信息完全包含在信號的過零點(diǎn)上，所以比起調(diào)幅信號，其對幅度非線性抗干擾能力要強(qiáng)。關(guān)鍵字 VHDL語言，F(xiàn)SK調(diào)制，F(xiàn)SK解調(diào)ⅠABSTRACTThe modem munication system is the key equipment, its performance has a direct relationship to the entire system performance. After nearly two weeks of experiments, we four members together, use Quartus II in the software of VHDL language to FSK FSK system will do modulation and demodulation of the program design. Finally made FSK modem. The design of FSK modems are: to determine the parameters of f1 = MHz, f2 = 2 MHz, modulation signal f = 1 MHz. The design of FSK circuit can be widely used in remote control system and frequency shift in munications. Utilize FSK modulator way of main advantage is: (1) no carrier recovery, and greatly reduce the system plexity. (2) the amplitude of the nonlinear of antijamming ability. Because FSK signal is a constant envelope signal, the information is fully contained in the signal zero, so, the amplitude modulated signal than by nonlinear antiinterference ability is ambitious. (3) demodulation is easy to use software and hardware realization, simple and understandable.Key word VHDL Language, FSK make, FSK solution adjustⅡFPGA課程設(shè)計目 錄摘 要…………………………………………………………………………………ⅠABSTRACT…………………………………………………………………………Ⅱ1 緒 論………………………………………………………………………………1 題目的意義………………………………………………………………………1 設(shè)計要求…………………………………………………………………………12 FSK設(shè)計的基本原理………………………………………………………………2 FSK的調(diào)制………………………………………………………………………2 FSK的解調(diào)………………………………………………………………………33 設(shè)計方案……………………………………………………………………………5 FSK基于VHDL語言調(diào)制程序……………………………………………………5 FSK基于VHDL語言解調(diào)程序……………………………………………………64 測 試………………………………………………………………………………8 FSK調(diào)制仿真……………………………………………………………………8 FSK解調(diào)仿真……………………………………………………………………115 結(jié) 論………………………………………………………………………………146 參考文獻(xiàn)…………………………………………………………………………15
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