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DMT调制，就是把整个通信信道在频域上划分很多子信道，在每个子信道上仍然采用QAM或类似的带通信号进行传输。其中QAM的通带中心频率应该与相应的子信道的中心频率一致。-DMT modulation, that is, the entire communication channel in the frequency domain divided on a lot of channel in each channel is still used on QAM or similar bandpass
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Plot π/4-DQPSK passband waveform.ASK,FSK,MSK waveform
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利用BPSK, DBPSK, QPSK, OQPSK, 16QAM, PAM， 信号进行基带，通带调制解调，分析频域，时域波形，误码率等-Using BPSK, DBPSK, QPSK, OQPSK, 16QAM, PAM for modulation and demodulation. Analyzing the spectrum, wave forms, and bit error rate
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基于simulink的QPSK的通带调制与解调-Based on simulink of QPSK modulation and demodulation of passband
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Implementation of Passband Modulation and Coherent Detection of BPSK signal using MATLAB
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本代码是《通信信号处理》课程的大作业相应的代码。主要是通信信号发射端的仿真，具体功能是：1. 产生任意长度的伪随机序列，将序列映射为I,Q两路的信号，2.均方根升余弦滤波器成型. 3.经过通带衰减为3dB的倾斜滤波器（模拟信道衰落效果）4.插零，半带滤波器升抽样。 5.NCO处理单元调制-This code is communication signal processing courses corresponding to the large code. Mainly is the sim
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具有带通的AM调制信号的仿真程序，可改自行改参数进行调整(analog amplitude modulation with passband
x is source signal)
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A key consequence of the usual double-sideband amplitude modulation (AM) is that the range of frequencies the signal spans (its spectral bandwidth) is doubled. Thus, the RF bandwidth of a signal (measured from the lowest frequency as opposed to 0 Hz)
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MPSK的仿真代码，这里我们模拟一个45×旋转的QPSK系统。一旦符号映射，对QPSK调制的功率信号需要1 /平方根归一化（2）。 码(In the previous section, we saw how QPSK modulation and demodulation in passband can be done.Here we are simulating a 45* rotated QPSK system. Once the symbols are mapped, the power
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