Cognitive-Radar-Theory-

C++,Fortran和Matlab分别实现的bp算法程序(The bp algorithm procedural C++, Fortran and Matlab achieve)

根据DFT的基二分解方法，可以发现在第L（L表示从左到右的运算级数，L＝1，2，3…M）级中，每个蝶形的两个输入数据相距B=2^(L-1)个点，同一旋转因子对应着间隔为2^L点的2^(M-L)个蝶形。从输入端开始，逐级进行，共进行M级运算。在进行L级运算时，依次求出个2^(L-1)不同的旋转因子，每求出一个旋转因子，就计算完它对应的所有的2^(M-L)个蝶形。因此我们可以用三重循环程序实现FFT变换。同一级中，每个蝶形的两个输入数据只对本蝶形有用，而且每个蝶形的输入、输出数据节点又同在一条水平线上，所以输出数据可以立即存入原输入数据所占用的存储单元。这种方法可称为原址计算，可节省大量的存储单元。附件包含算法流程图和源程序。(err)

说明：  dll for personal medical uses

某石油公司计划建造一条由东向西的主输油管道。该管道要穿过一个有n 口油井的油田。从每口油井都要有一条输油管道沿最短路经(或南或北)与主管道相连。如果给定n 口油井的位置,即它们的x 坐标（东西向）和y 坐标（南北向）,应如何确定主管道的最优位置, 即使各油井到主管道之间的输油管道长度总和最小的位置?证明可在线性时间内确定主管道的最优位置。(An oil company plans to construct a east to west from the main pipeline. The pipeline to pass through an oil field n wells. Wells from each must have a pipeline along the shortest path (or South or North) connected with the competent Road. If given the location of oil wells in n, that is, their x coordinates (east-west) and y coordinates (north-south), should be how to determine the optimal position in charge of Road, even if the wells to the pipeline in charge of Road between the sum of the smallest length location? proved to be linear time to determine the optimal position in charge of Road.)

自适应多速率编码器标准代码，解码端。可将wav文件编码生成amr格式的文件。这种格式的文件可根据信道质量，自动调节编码速率，故称之为自适应。(adaptive multi-rate encoder standard code, the decoder. Wav documents can be generated amr coding format documents. This format of the document is available according to the channel quality, automatic adjustment coding rate, but it is called adaptive.)

chomsky文法判断，0，1，2，3四种文法类型的判断(chomsky)

相控阵列天线方向图的matlab实现，来自学报(Phased array antenna pattern matlab realize, from University)

基于C++程序语言的UDF全英文使用手册(UDF mannual)

说明：  文章编辑系统，输入一页文字，程序可以统计出文字、数字、空格的个数。 静态存储一页文章，每行最多不超过80个字符，共N行 (Article editing system, input a word, the program can be worked out, words, numbers, the number of spaces. Static storage an article, each line no more than 80 characters, a total of N rows)

在TDOA定位系统中，运用平滑的的IMM算法对机动目标进行被动跟踪 (TDOA positioning system, the use of smooth IMM algorithm for passive tracking of maneuvering targets)