本程序用于检测音频文件中是否具有DTMF信号，若有则将其检出。 程序首先使用Goertzel算法求出以FRAMESIZE（默认200）为大小的一帧数据在8个DTMF频点上的能量。 对Goertzel算法的改进，对于系数的计算不是采用2*cos[2*pi*k/N]，而是采用2*cos[2*pi*fn/fs],这样能够降低误差。 确定了8个频点的能量后运用一系列判决门限来确定有没有DTMF信号，以及信号是什么。
上传时间： 2017-03-15
上传用户：wyc199288
本程序是11位带符号位的乘法器，其中最高位为符号位(sign)，中间7位是指数部分(Exponent)，最后3位是尾数(Matissa)。表示数据的范围是-2^-63-----+2^64.该工程文件有完整的程序，以及波形,验证正确。
上传时间： 2013-12-31
上传用户：大三三
The AT24C512 provides 524,288 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 65,536 words of 8 bits each. The device鈥檚 cascadable feature allows up to four devices to share a common two-wire bus. The device is optimized for use in many industrial and commercial applications where lowpower and low-voltage operation are essential. The devices are available in spacesaving 8-pin PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless Array (LAP), and 8-lead SAP packages. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
标签： electrically programmable provides erasable
上传时间： 2017-04-09
上传用户：cc1015285075
孙即祥，现代模式识别，第2.4.2节关于相似性阈值聚类仿真实验。
标签：
上传时间： 2017-04-09
上传用户：asdfasdfd
vb2005编写的计算器。 直接输入字符串，如: 4+pi^2+sin(3*cos(2)*e^2)+2.3E13 常数：pi,e 科学计数表示：1E4(1*10^4) 函数支持常用函数:sin,cos,tan,atan,asin...
上传时间： 2017-04-20
上传用户：weixiao99
一篇空时码的综述文章，以及给出了1*1，1*2，2*1，2*2接收发机天线结构的matlab仿真程序。
标签： 空时码
上传时间： 2017-04-22
上传用户：cc1
About this Document This whitepaper has been converted to a free chm format for ease of use for DotNetNuke 2.1.2 skinning by Nina Meiers, core team member, designer of the DNN 3 skins, winner of the most professional DotNetNuke site for 2004, and over 40,000 downloads of free skins available on
标签： whitepaper converted for Document
上传时间： 2013-12-05
上传用户：exxxds
本程序为实现LDPC编码和STBC，STBC采用2发2收天线，希望对大家有一定的帮助。
上传时间： 2013-12-18
上传用户：源弋弋
This sample program generates two sine waves called X and Y. It will then calculate the normalized magnitude and phase of the two waveforms using the following formulas: Mag = sqrt(X^2 + Y^2)/sqrt(GainX^2 + GainY^2) Phase = (long) (atan2PU(X,Y) * 360) The program will prompt the user to change the gain and frequency of the X and Y waveforms.
标签： Y. normalized generates calculate
上传时间： 2014-01-06
上传用户：123456wh
Implementation of Edmonds Karp algorithm that calculates maxFlow of graph. Input: For each test case, the first line contains the number of vertices (n) and the number of arcs (m). Then, there exist m lines, one for each arc (source vertex, ending vertex and arc weight, separated by a space). The nodes are numbered from 1 to n. The node 1 and node n should be in different sets. There are no more than 30 arcs and 15 nodes. The arc weights vary between 1 and 1 000 000. Output: The output is a single line for each case, with the corresponding minimum size cut. Example: Input: 7 11 1 2 3 1 4 3 2 3 4 3 1 3 3 4 1 3 5 2 4 6 6 4 5 2 5 2 1 5 7 1 6 7 9 Output: 5
标签： Implementation calculates algorithm Edmonds
上传时间： 2014-01-04
上传用户：kiklkook
