This project aim was to build wireless software modem for data communication between two computers using an acoustic interface in the voice frequency range (20Hz– 20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz – 2

一整套OFDM系统的实现程序，基于梳状导频图案的OFDM系统估计，采用LS信道估计方法，和线性插值法，信道采用瑞丽多径信道。-A whole set of OFDM system, the implementation of the program of OFDM system based on comb pilot pattern, estimates using the LS channel estimation method, and the linear interpolation me

mimo-ofdm系统基于梳状导频的信道估计,使用最小二乘法,线性内插,(Mimo-ofdm system based on comb pilot channel estimation, using the least square method, linear interpolation,)