MTD定点浮点仿真，可直接用于fpga算法的仿真程序，产生了扫频信号，仿真直接输出系统频率响应函数，为系统测试带来好处-MTD fixed-point floating-point simulation, fpga algorithm can be used directly in the simulation program to produce a sweep signal, the direct simulation output system frequency response function for the benefit of system testing