最近用Mega128写了一个128点FFT程序，浮点运算，加汉宁窗。由于窗函数和旋转因子通过查表得到，所以速度还可以，程序中给的初值是通过高速AD采集的20KHz正弦信号。计算结果与Matlab的FFT函数得到的结果相同。
上传时间： 2014-01-19
上传用户：奇奇奔奔
DSP Builder设计初步,介绍Matlab/DSP Builder及其设计流程，正弦信号发生器完整的设计过程，以及使用Matlab、quartusII\modelsim详细的仿真过程。
上传时间： 2013-12-24
上传用户：nanfeicui
We have a group of N items (represented by integers from 1 to N), and we know that there is some total order defined for these items. You may assume that no two elements will be equal (for all a, b: a<b or b<a). However, it is expensive to compare two items. Your task is to make a number of comparisons, and then output the sorted order. The cost of determining if a < b is given by the bth integer of element a of costs (space delimited), which is the same as the ath integer of element b. Naturally, you will be judged on the total cost of the comparisons you make before outputting the sorted order. If your order is incorrect, you will receive a 0. Otherwise, your score will be opt/cost, where opt is the best cost anyone has achieved and cost is the total cost of the comparisons you make (so your score for a test case will be between 0 and 1). Your score for the problem will simply be the sum of your scores for the individual test cases.
标签： represented integers group items
上传时间： 2016-01-17
上传用户：jeffery
本简易网络导纳分析仪以C8051F020为控制和数据处理核心，由正弦信号发生器模块、滤波和功率放大模块、I/V变换模块、导纳角测量模块、导纳模测量模块、键盘模块以及液晶显示模块组成。采用数字控制DDS芯片AD9851产生100Hz－10KHz正弦信号，经滤波和功率放大后驱动网络负载。从网络负载中提取被测量信号，输入到以真有效值转换集成芯片AD637为核心的电压和电流测量电路构成的导纳模测量模块中进行导纳模测量。导纳角测量模块是从导纳模测量模块中取电压和电流信号分别经过零比较后使用鉴相器对信号相位差测量。把上述的测量结果经单片机处理后用液晶显示。为了提高测量精度，将各部分电路的误差合理分配，使电路达到最佳测量效果。
上传时间： 2014-09-06
上传用户：JIUSHICHEN
The XML Toolbox converts MATLAB data types (such as double, char, struct, complex, sparse, logical) of any level of nesting to XML format and vice versa. For example, >> project.name = MyProject >> project.id = 1234 >> project.param.a = 3.1415 >> project.param.b = 42 becomes with str=xml_format(project, off ) "<project> <name>MyProject</name> <id>1234</id> <param> <a>3.1415</a> <b>42</b> </param> </project>" On the other hand, if an XML string XStr is given, this can be converted easily to a MATLAB data type or structure V with the command V=xml_parse(XStr).
标签： converts Toolbox complex logical
上传时间： 2016-02-12
上传用户：a673761058
用VHDL语言编写的，利用FPGA模拟示双通道波器功能，两个通道各自输入正弦信号，合成“李萨如”图
上传时间： 2016-02-20
上传用户：1159797854
序列Lloyd算法，对一个正弦信号数据进行标量量化
上传时间： 2013-12-16
上传用户：wfeel
fpga的应用，一个正弦信号发生器，可以调节频率大小，和PSK,QSK,FM,AM等调制
标签： fpga
上传时间： 2014-01-11
上传用户：zhuyibin
实现神经网络中的Adaline的LMS算法，分别对正弦信号和三角波信号识别。
上传时间： 2014-01-22
上传用户：dengzb84
基于调幅和调频的基本原理，运用产生信号的两种基本方法，使用CCS软件以及Digital Signal Processor实现调幅调频信号的发生。
上传时间： 2014-01-01
上传用户：jqy_china
