GMSK1

This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.

脉冲变压器设计手册..希望对大家有所帮助(Pulse Transformer Design Manual .. hope to be helpful)

勘探地震学 研一课程 二维速度结构的时域有限差分模拟 采用雷克子波(Exploration seismology Kenichi course of the two-dimensional velocity structure using finite difference time domain simulation Ricker wave)

平面波展开法计算正方形结构光子晶体的带隙的程序，二维，平面(Plane wave expansion method to calculate the square of the structure of photonic crystal band-gap procedure, two-dimensional, planar)

长周期光纤光栅有着很广泛的应用前景,关于长周期光纤光栅的理论分析也很成熟,而具体如何实现其传输谱特性的 仿真却报道很少(Long-period fiber grating has a very broad application prospects, on the theory of long-period fiber grating analysis is also very mature, and specifically how to achieve its transmission spectral characteristics of the simulation are few reports)

QPSK modulation using a prbs data input

这是一个HDB3码型转换的GUI程序，可以实现对任意输入的序列进行AMI hdb3的编码解码的波形输出。(This is a converter of the HDB3 code GUI program can be achieved for any input sequence AMI hdb3 coding and decoding of the waveform output.)

IEEE14潮流计算 牛拉法 直角坐标形式 (The IEEE14 node power flow calculation cattle Rafah rectangular coordinate form)

在matlab环境下，用最邻近数据关联算法实现目标跟踪。(the Matlab environment, using the most neighboring data association algorithm to achieve the target track.)

一款RS缩短码的源代码，可修改其中主程序的数据变任意一种RS码的编码器，此程序经多次验证均正确，且采用标准代码格式描写，易读。(A shortened RS code source code, which can modify data in the main program code change any of the RS encoder, this procedure has been repeatedly verified are correct, and the use of standard code format description, easy to read.)