【正文】
2,3)。zaibopinpu39。 plot(abs(Y3))。subplot(4,2,8)。比如對(duì)調(diào)制信號(hào)進(jìn)行調(diào)制之前,實(shí)際上應(yīng)該先對(duì)給出的某一個(gè)調(diào)制信號(hào)進(jìn)行傅立葉變換,成為基波諧波的模式在進(jìn)行調(diào)制。最值得欣賞的風(fēng)景,是自己奮斗的足跡。不要做金錢(qián)、權(quán)利的奴隸;應(yīng)學(xué)會(huì)做“金錢(qián)、權(quán)利”的主人。四、結(jié)果分析本實(shí)驗(yàn)通過(guò)MATLAB軟件建立了振幅調(diào)制的數(shù)學(xué)模型,并且模擬了調(diào)制過(guò)程,得到調(diào)制信號(hào)與已調(diào)制信號(hào)的時(shí)域圖與頻譜圖。SSBLtiaofuxinhao39。subplot(4,2,6)。 plot(abs(Y2))。tiaozhipinpu39。subplot(4,2,1)。 U2m=2。DSBpinpu39。subplot(3,2,5)。)。 plot(abs(Y1))。 u3=k*u1.*u2。 U11m=。Y3=fft(u3)。zaibopinpu39。subplot(3,2,3)。)。其次,對(duì)調(diào)制信號(hào)和載波信號(hào)進(jìn)行調(diào)制u1=U11m.*cos((w11).*t)+U12m.*cos((w12).*t)。w12=50*pi。振幅調(diào)制,就是由調(diào)制信號(hào)去控制高頻載波的振幅,直至隨調(diào)制信號(hào)做線(xiàn)性變化。關(guān)鍵詞:振幅調(diào)制;MATLABAbstractBased on the basic circuit and working principle of amplitude modulation circuit analysis, established the mathematical model of the amplitude modulation circuit, performance is studied by using the MATLAB simulation and analysis, code used in the simulation are given, so as to promote the understanding and application of amplitude modulat