wave-height spectrum

And several commonly used parameters which represent the electromagnetic wave propagation process are introduced, such as power delay profile, time dispersion parameters, coherence bandwidth and fading Doppler spectrum.

并就一些常用的表征电磁波传播过程的参数进行了介绍，如功率延迟分布图、时间色散参数、相干带宽和衰落多普勒频谱。

Frequency Spectrum Characteristic of Photoacoustic Wave of Thermal Damage of Homogeneous Solid Propellant

激光对均质固体推进剂热损伤的光声频谱特征

Thin-film wave-guide spectrum analyzer

薄膜波导光谱分析仪

The platform of FPGA embedded signal processing based on the idea of software radio is set up to achieve the architecture of system on programmable chip ( SOPC). The time delay estimation model of sound wave spread spectrum system is established with the optimization of algorithm.

在此基础上，结合软件无线电思想，利用FPGA嵌入式数字信号处理平台实现可编程片上系统；建立声波扩频测距时延估计模型，研究数字信号处理优化算法，给出实验结果，分析和讨论测量精度问题。

Finally we Validated the system by JTAG emulator, Then download the program to DSP and observe the spectrum wave by oscilloscope offline.

通过仿真器验证整个系统的运行是否正确，最后下载程序到DSP芯片，脱机用示波器直接观察信号的频谱波形。