DORIS_documents_Chinese

用于统计任一英文文档中26个字母的统计频率，得到频率矩阵(Second, it fuses the features of the first singular value component and the second one, and then gets the complex feature vectors which reflect not only the statistic frequency but also the sequential structure of letters. In the end, the cosine similarity of texts is used to measure the similarity between the query and documents.)

针对3中不同的面目标回波仿真结果（内含有3个回波仿真结果） 用rd算法进行成像(Imaging rd algorithm for 3 different surface targets echo simulation results (contains 3 echo simulation results))

深空通信SUMPLE算法仿真，收敛性，合成增益等(SUMPLE algorithm for deep space communicaion)

智能计算课程中需要的一些程序，这个是程序包(Intelligent computing some of the procedures required course, this is the package)

说明：  利用压缩感知理论MOMP法计算独立信源DOA估计(Computing DOA estimation of independent source using compressed sensing theory MOMP)

LDPC码的matlab仿真程序，希望对大家有用，不客气，(LDPC codes matlab simulation program, in the hope that useful, at worst,)

在matlab环境下的向前和向后euler算法价偏微分方程问题(Matlab environment in the forward and backward Euler algorithm for partial differential equations the question of price)

说明：  一个关于时域有限差分的小程序，用MATLAB开发，模拟电磁波传播特征。(A finite-difference time-domain on a small program developed with MATLAB to simulate electromagnetic wave propagation features.)

说明：  摘要：用MATLAB对基带数据传输解调检测进行仿真，推导不同先验概率下，接收端最小错误的判决门限。仿真不同先验概率下的误码性能，二进制与多进制的误码性能比较，码间串扰对误码性能的影响，及频偏对串行通信误码率的影响。 关键词：MATLAB，基带传输，检测，判决门限 (Abstract: Using MATLAB for baseband demodulation simulation data derived under different prior probability, the receiver decision threshold minimum error. Simulation under different prior probability of error performance, binary and multi-bit error performance of binary comparison ISI on the BER performance, and the offset of the serial communication error rate. Keywords: MATLAB, baseband transmission, detection, decision threshold)

不同信噪比下，利用MUSIC算法实现AIC,MDL,HQ,EDC(Different signal to noise ratio, the use of MUSIC algorithm AIC, MDL, HQ, EDC)