COA-code

matlab学习教程,很实用很好学哦，强力推荐(a study course about Matlab )

如果阵元间距小于半波长，则阵元间会产生耦合。如果阵元间距大于半波长，则阵列上会现多余的旁瓣，从而降低天线阵列的性能。而当阵列间距选取为半波长时，所估测出的效果最优。(If the array element spacing is less than half wavelength, it will produce coupling between array elements. If the array element spacing is greater than half wavelength, the array will now be extra sidelobes, thus reducing the performance of the antenna array. When the array spacing is half wavelength selection, the best estimate the effect.)

kalman filter for tracking a single target with one dimension state and one dimension mesurment

MATLAB program for parallel port accessing with PC

(MATLAB) On the companion website, you will find in the directory Chap exercises/chapter3 a workspace ex3M2.mat. In this workspace, you will find waveforms of the words “we” and “be” (at 10000 samples/s) in the array we be 10k. The waveforms and a spectrogram of the waveforms are shownin Figure 3.33. To display the spectrogram andwaveform, use the function specgram ex3p19.m also in Chap exercises/chapter3. To listen to the waveform, use the MATLAB function sound.m.

障碍物的源程序m文件，能在matlab中成功运行(The source program m file of the obstacle can successfully run in matlab)

说明：  一个带界面的信号与系统实验系统，包含若干个实验模块(An interface with the Signals and Systems Laboratory System, contains a number of experimental modules)

when SNR is high , 1st sample estimator provides good estimate of A. it has no noise effect . so we don’t need averaging effect to reduce noise when SNR is high. However variance is still low in sample mean estimator which shows that in reality ,sample mean is good estimator than 1st sample estimator. So, for high SNR, we do not need to reduce the effect of noise by averaging. or we can say that for high SNR let say >1000 , 1st sample estimator got reduced noise. But as for as variance is concerned , the sample mean has low variance for high SNR as well.

ofdm在瑞利信道的仿真程序还有snr，ber图形(ofdm simulation program in Rayleigh channel also snr, ber graphics)

盲均衡中的常模算法用于抽样判决后的多径效应均衡，显著降低误码率(Multipath equalization Blind equalization algorithm norm for post-judgment sampling, significantly reduce the error rate)