利用高阶谱进行系统辨识，估计得到点扩散函数，然后再进行傅域或小波域的解卷处理。由此得到的超声图像，分辨率大大提高了。-System identification using higher order spectrum, is estimated to be the point spread function, and then for Fu domain or wavelet domain deconvolution processing. The resulting ultrasound im

Multi-Carrier Modulation is a technique for data-transmission where a high-bit rate data stream is divided into several parallel low bit-rate data streams and using these low bit-rate data streams to modulate several carriers. Multi-Carrier Transmiss

扩频通信系统下，直接扩频通信系统的仿真代码(Spread spectrum communication system, the simulation code of direct spread spectrum communication system.)