QPSK-MBOFDM发射接收机 QPSK调制的多频带OFDM（MB-OFDM）发射机，经过加性高斯噪声信道，接收机判断误码率。 -QPSK-MBOFDM launch QPSK modulation receiver multiband OFDM (MB-OFDM) transmitter, through the additive Gaussian noise channel, the receiver determine the error rate.