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说明：  滤波在 世纪 年代初一经提出，立即受到工程界，特别是空间技术和航空界的高度重 视。应用 滤波算法进行卫星轨道精密确定，必须首先构造可靠的卫星动力学模型和可靠的观 测模型以及合理的估计方法。(Filter was put forth in the 1750s and started immediately subject to the engineering sector, especially in space technology and attaches great importance to the aviation community. The application filtering algorithm precision determination of satellite orbit must first construct the the reliable satellite dynamics model and observation model, and the reasonable estimation method.)

In mathematics, the method of steepest descent or stationary phase method or saddle-point method is an extension of Laplace s method for approximating an integral, where one deforms a contour integral in the complex plane to pass near a stationary point (saddle point), in roughly the direction of steepest descent or stationary phase.

Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth: a measure of the width of a range of frequencies, measured in hertz Bandwidth (computing) or digital bandwidth: a rate of data transfer, bit rate or throughput, measured in bits per second (bps) Spectral linewidth: the width of an atomic or molecular spectral line, measured in hertz

粒子与卡尔曼滤波程序，用来机动目标跟踪数据的滤波和分析(Particle and Kalman filtering program used to analyze maneuvering target tracking)

说明：  有限体积法，黎曼问题，激波，偏微分方程数值解(Finite volume method, Riemann problem, shock wave, numerical solution of partial differential equation)

该文件是GRNN的数据预测的源代码，可用于基于广义回归神经网络的货运量预测(The file is a the GRNN data predicted source code that can be used for cargo forecast based on generalized regression neural network)

详细的卷积编码与维特比译码算法。产生随机信号，对信号进行卷积编码，然后经过数值转换、格雷编码，QPSK调制，进入加噪信道，之后进行QPSK解调，格雷解码， 数制转换、 维特比译码得到接收端的信号。(Detailed convolutional coding and Viterbi decoding algorithm. Random signal, the signal convolution coding, and then through numeric conversion, Gray coding, QPSK modulation, plus noise into the channel, followed by QPSK demodulation, decoding Gray, number system conversion, Viterbi decoding to get the receiving end of the signal.)

基于矩量法的程序，主要计算天线的散射问题(the program is about scattering of antenna base on MOM )

this document describe the development of design of camera lens.

A Simple Digital Communication Receiver_2_