此代码为RFID中防冲突算法中固定帧ALOHA算法的的碰撞率，正确率和空闲率的模拟和仿真-this code for RFID defense conflict algorithm fixed frame ALOHA algorithm collision rate correct rate and the rate of idle modeling and simulation

信道估计程序，采用块状导频的办法，OFDM信号，采用自适应算法对瑞利信道模拟，有效地估计了信道-Channel estimation procedure for the pilot block approach, OFDM signal, using adaptive algorithm for Rayleigh channel simulation, an effective tool in estimating the channel