The principle of V.29 modem is researched carefully, and the algorithms of the scrambler, the 16QAM codec, the raise cosine roll-off filter, the descrambler and other modules are realized in C language.

• 对V.；29建议规定的调制解调方式进行了细致的研究，并用C语言实现了扰码器、16QAM星座编解码、平方根升余弦滚降滤波器、解扰器等模块的算法。