同时发射码元填以不同频段噪声的测量码和信息码,测量码用于测量信道的脉冲响应,然后通过反卷积从接收的信息码恢复发射的信息码. Simultaneously transmitted symbols are filled with measurement codes and information codes for noise in different frequency bands. The measurement code is used to measure the impulse response of the channel and then the transmitted information code is recovered from the received information code by deconvolution.