Histogram_irregular

利用二次插值法进行一维搜索，得出最小值，通过抛物线法实现区间识别(Quadratic interpolation method using a one-dimensional search, the minimum value obtained by the parabola method to achieve Interval Recognition)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

课程设计需要运用MATLAB编程实现2ASK,2FSK,2PSK，2DPSK调制解调过程，并且输出其调制后的波形，画出频谱、功率谱密度图，并比较各种调制的误码率情况，讨论其调制效果。(Curriculum design requires the use of MATLAB programming 2ASK 2FSK, 2PSK 2DPSK modulation demodulation process and output modulated waveform, draw the spectrum, power spectrum density map and compare various modulation BER discuss its modulation effect.)

一个用matlab写的跳频通信系统仿真，信道采用的是高斯白噪声信道(a frequency-hopped communication system, simulated by matlab )

用matlab编写的程序，实现模糊小波控制，用于控制机器人的手或者腿部的运动。(Programs written with matlab, the fuzzy wavelet control, used to control the robot' s hand or leg movement.)

MATLAB遗传算法工具箱，希望能对学习这方面知识的朋友有帮助。(MATLAB genetic algorithm toolbox, hoping to study in this area of knowledge has to help a friend.)

用matlab语言编写的kalman滤波的demo 调试通过 滤波结果用图可直观看到 程序简单实用()

matlab宝典.pdf 学习matlab的好资料(matlab Collection. pdf good information to learn matlab)

It is BER vs SNR codes for BPSK and 4QAM

psuedo noise code in matlap