由于前导码在发送信号中是反复发送的，所以降低前导码的峰均比值对整个发送信号有较大影响。发送信号的数据位和校验位不能做降峰均比操作，否则会影响系统的误码率和稳定性-As the preamble is repeatedly sending a signal to send, so reducing the peak to average ratio preamble to send signals to the entire greater impact. Send signal data bit