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三相并联有源电力滤波器，基于瞬时无功理论的ip-iq电流检测法，三角波比较控制，抑制谐波电流(Three-phase shunt active power filter based on instantaneous reactive power theory, ip-iq current detection method, the triangular wave comparison control, inhibition of the harmonic current)

说明：  牛顿公式、修正牛顿公式和斜激波关系式三种计算压力系数方法比较程序MATLAB源码(Newton' s formula, modified Newton formula and oblique shock relation three calculation pressure coefficient comparison procedures MATLAB source)

cvx toolbox 求解1范数稀疏问题(cvx toolbox)

) Compression using huffman code -with a number of bits k per code word -provide huffman table Huffman coding is optimal for a symbol-by-symbol coding with a known input probability distribution.This technique uses a variable-length code table for encoding a source symbol. The table is derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol .Huffman coding uses a specific method for representing each symbol, resulting in a prefix code that expresses the most common characters using shorter strings of bits than those used for less common source symbols.The Huffman coding is a procedure to generate a binary code tree. () Compression using huffman code -with a number of bits k per code word -provide huffman table Huffman coding is optimal for a symbol-by-symbol coding with a known input probability distribution.This technique uses a variable-length code table for encoding a source symbol. The table is derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol .Huffman coding uses a specific method for representing each symbol, resulting in a prefix code that expresses the most common characters using shorter strings of bits than those used for less common source symbols.The Huffman coding is a procedure to generate a binary code tree. )

矩阵分解求逆中的Cholkski分解算法的Matlab仿真。(Inverse matrix decomposition decomposition algorithm in the Matlab simulation Cholkski.)

用matlab处理矩阵和向量的各种函数，解决各种难题，并让程序具有通用性，鲁棒性等，英文(Matlab matrix and vector processing with a variety of functions, solving problems, and let the program has the versatility, robustness, English)

改程序为matlab中自定义函数，并保存为变量等进行进一步操作做了简要编译，适用于初学者学习，方便(The program for matlab custom function, and save for variables for further operation do a brief compilation, it is suitable for beginners to learn, convenient)

基本的ofdm系统实现以及误码率分析（信道为高斯白噪声信道）(The realization of a basic ofdm system.(the channel is white gaussian noise channel))

Lexical Analysis, in Compilers

考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等，在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)