code củ a dsp 30f4012 viế t cho giao tiế p LCD
上传时间: 2017-06-17
上传用户:koulian
These files in Matlab implement a conventional DS -CDMA detector using QPSK modulation and matched filters in the receiver.
标签: conventional modulation implement detector
上传时间: 2017-06-22
上传用户:ruan2570406
In 揚erformance of multi-carrier DS CDMA Systems?we apply a multi-carrier signaling technique to a direct-sequence CDMA system, where a data sequence multiplied by a spreading sequence modulates multiple carriers, rather than a single carrier. The receiver provides a correlator for each carrier, and the outputs of the correlators are combined with a maximal-ratio combiner. This type of signaling has the desirable properties of exhibiting a narrowband interference suppression effect, along with robustness to fading, without requiring the use of either an explicit RAKE structure or an interference suppression filter.
标签: multi-carrier erformance signaling technique
上传时间: 2017-07-31
上传用户:宋桃子
本文:采用了FPGA方法来模拟高动态(Global Position System GPS)信号源中的C/A码产生器。C/A码在GPS中实现分址、卫星信号粗捕和精码(P码)引导捕获起着重要的作用,通过硬件描述语言VERILOG在ISE中实现电路生成,采用MODELSIM、SYNPLIFY工具分别进行仿真和综合。
上传时间: 2013-08-31
上传用户:pwcsoft
Pocket SIP Messenger is a SIP instant messaging client for small devices that use Windows CE (iPAQ Pocket PC, ...). The IM protocol is based on SIMPLE (IETF) working group s specification.
标签: Messenger SIP messaging instant
上传时间: 2015-03-13
上传用户:lyy1234
RSA算法 :首先, 找出三个数, p, q, r, 其中 p, q 是两个相异的质数, r 是与 (p-1)(q-1) 互质的数...... p, q, r 这三个数便是 person_key,接著, 找出 m, 使得 r^m == 1 mod (p-1)(q-1)..... 这个 m 一定存在, 因为 r 与 (p-1)(q-1) 互质, 用辗转相除法就可以得到了..... 再来, 计算 n = pq....... m, n 这两个数便是 public_key ,编码过程是, 若资料为 a, 将其看成是一个大整数, 假设 a < n.... 如果 a >= n 的话, 就将 a 表成 s 进位 (s
标签: person_key RSA 算法
上传时间: 2013-12-14
上传用户:zhuyibin
The Small C compiler translates a subset of the C language into assembly language. It runs under PC/MS-DOS 2.1 and later. Small C is compatible with the Microsoft and Small Mac assemblers. Small C takes full advantage of the ability of these assemblers to generate relocatable object code, to maintain libraries of relocatable modules, and to link separately compiled program modules. It supports a small memory model with one code and one data/stack segment.
标签: language translates compiler assembly
上传时间: 2015-04-08
上传用户:Avoid98
计算ARMA(p,q)模型的功率谱密度。 形参说明: b——双精度实型一维数组,长度为(q+1),存放ARMA(p,q)模型的滑动平均系数。 a——双精度实型一维数组,长度为(p+1),存放ARMA(p,q)模型的自回归系数。 q——整型变量,ARMA(p,q)模型的滑动平均阶数。 p——整型变量,ARMA(p,q)模型的自回归阶数。 sigma2——双精度实型变量,ARMA(p,q)模型白噪声激励的方差。 fs——双精度实型变量,采样频率(Hz)。 x——双精度实型一维数组,长度为len。当sign=0时,存放功率谱密度;当sign= 1时,存放用分贝表示的功率谱密度。 freq——双精度实型一维数组,长度为len。存放功率谱密度所对应的频率。 len——整型变量,功率谱密度的数据点数。 sign——整型变量,当sign=0时,计算功率谱密度;当sign=1时,计算用分贝表 示的功率谱密度。
上传时间: 2015-04-09
上传用户:qiao8960
this is a trade sale system realized by java. It can run some easy functions and has a good design pattern CVS. A good project to learn CVS.
标签: functions realized design system
上传时间: 2015-04-17
上传用户:sz_hjbf
Punjab is a jabber XMLRPC/SOAP/REST client. It is a xmlrpc, soap, or REST server that allows for persistent client connections to a jabber server.
上传时间: 2015-05-09
上传用户:fanboynet