一个OFDM系统的仿真程序,可看出信噪比与误码率之间的关系.-an OFDM system simulation program, we can see the signal-to-noise ratio and bit error rate of the relations between them.

QPSK在加性高斯白噪声环境下，信噪比和误码率的仿真。 先产生一个四组符号的序列，再将该序列映射到对应的相位上。用相应的函数产生均值为零、方差为δ2的加性高斯噪声。 -QPSK the additive white Gaussian noise environment, and the signal-to-noise ratio of the simulation. First group have a four symbols of sequence, then this seque

对ofdm插入梳妆（comb)导频，比较了有ls信道估计和无信道估计，并仿真得到了不同信噪比下，误码率曲线；信道为多径瑞利衰落加上白噪声；经过调试，已经能正确运行