一种超声波发射系统，包括探测信号、同步信号BPSK信号的发射过程，用C代码编写，在CCS软件上实现。-An ultrasonic transmitter system, including firing process detection signal, synchronizing signal BPSK signal, written in C code that implements the CCS software.

C and MATLAB implementation for LDPC encoding and decoding-Overview of what is provided WiFi (IEEE 802.11n) LDPC code construction Encoding by back-substitution for WiFi LDPC codes Iterative belief propagation (BP) Decoding (including