fft_calc_df_1288

SGP4官方程序,包括matlab，java，C++等源码和说明文件(Official program of SGP4 model,includes Matlab, VC, Java, etc.)

16阶带通fir滤波器程序，处理加有白噪声的线性变频信号程序(16-order band-pass filter fir procedures to deal with white noise plus a linear frequency signal process)

multicasting in routing protocols

这是由Andrea Monti Guarnieri的卫星轨道确定算法，基于的是norad 的tle数据(This is Andrea Monti Guarnieri satellite orbit determination algorithm, is based on the norad of tle data)

大连理工大学钟万颉教授的精细积分法。the pim from dalian university of science and technology.

使用matlab的小波分解和重建函数对24位的ADC采样数据进行小波变换和去噪，去噪使用阈值算法，阈值的选取具体使用了6种方法进行对比，对于不同信号其效果是不同的！把去噪后的信号和原始信号放在一个图中，使用不同颜色的曲线进行对比，效果可以很直观的表现。(Using matlab wavelet decomposition and reconstruction of the function for 24-bit ADC sampling data wavelet transform and denoising, denoising using the threshold algorithm, the threshold selecting specific methods used six kinds of contrast, the effect for different signals is different The! After the denoising signal and the original signal on a map using different colors to compare curves, the effect can be very intuitive performance.)

Pearson s correlation coefficient between two variables is defined as the covariance of the two variables divided by the product of their standard deviations

采用FSK调制方式，用于仿真高斯噪声、单音干扰等多种干扰环境下跳频系统性能及误码率(FSK modulation, frequency hopping system performance and bit error rate for the simulation of Gaussian noise, single tone jamming and other interference environment)

软件代码保护编写方法-vmprotect(soft-code protect writing-vmprotect)

modulation and demodulation using OFDM