PCAL1

matlab6.5辅助小波与应用，一本很好的小波学习书。(matlab6.5 secondary wavelet and application of wavelets to study a good book.)

echo cancellation by matlab

Huffman encoding and decoding

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3

说明：  basic histogram equalization

使用matlab进行边缘提取，更加深刻的理解canny算法应用(Using matlab to edge extraction, a more profound understanding of the application of canny algorithm)

三相桥双极性PWM控制Simulink仿真，叠加一些其他信号，另加一滤波器观看PWM经过低通滤波后的波形，适合电力电子初学者(Three-phase bridge bipolar PWM control Simulink simulation, superimposed a number of other signals, plus a watch PWM filter through after the low-pass wave filter for power electronics for beginners)

粒子群算法例程,之前数学建模美赛时使用的代码，发出来和大家分享一下(PSO.rar Particle swarm algorithm routines, mathematical modeling used before the contest code used to send out to share with you)

matlab实现huffman编码 1. norm2huff.m (encoder function) 2. huff2norm.m (decoder function) 3. frequency.m (private function) 4. huffcodes2bin.m (binary rapresentation of huffman codes) 5. huffman_bench1.m (benchmark) 6. huffman_demo1.m (demo file) 7. huffman_demo2.m (demo file) 8. huffman_test1.m (test file) 9. huffman_test2.m (test file) 10. huffman_docs.zip (documentation) 11. Disclamer.txt (this is the disclamer)(huffman coding matlab realize 1. norm2huff.m (encoder function) 2. huff2norm.m (decoder function) 3. frequency.m (private function) 4. huffcodes2bin.m (binary rapresentation of huffman codes) 5. huffman_bench1.m (benchmark ) 6. huffman_demo1.m (demo file) 7. huffman_demo2.m (demo file) 8. huffman_test1.m (test file) 9. huffman_test2.m (test file) 10. huffman_docs.zip (documentation) 11. Disclamer.txt (this is the disclamer))

这个是有限数字滤波器的设计程序，有低通高通，带通等滤波器设计。(This is a limited number of filter design process, a low pass high pass, band pass and other filter design.)