-
Turbo_encode_decode
说明： Turbo码编译码的matlab源代码，包括logMAP算法与SOVA算法。可设置信道SNR参数，帧长度，删余系数等。(Turbo Codes Encoding and Decoding of the matlab source code, including logMAP algorithm and SOVA algorithms. Parameters can be set to channel SNR, frame length, deleted I coefficient.)
- 2010-03-17 19:03:22下载
- 积分：1
-
mmsp
前后向平滑算法：算法的原理很简单，以五点三次平滑为例。取相邻的5个数据点，可以拟合出一条3次曲线来，然后用3次曲线上相应的位置的数据值作为滤波后结果。简单的说就是 Savitzky-Golay 滤波器 。只不过Savitzky-Golay 滤波器并不特殊考虑边界的几个数据点，而这个算法还特意把边上的几个点的数据拟合结果给推导了出来。(Before and after the smoothing algorithm: the principle of the algorithm is very simple, to 5.3 times smooth as an example. Take the adjacent five data points, you can fit out a curve 3 times, and then use the corresponding position on the third time the data value as the filtered results. Simply said is the Savitzky-Golay filter. However, the Savitzky-Golay filter does not specifically consider several data points of the boundary, and this algorithm also specifically to the edge of a few points of the data fitting results derived.)
- 2017-02-28 14:43:31下载
- 积分：1
-
GNSS_SDR
说明： 我在美国公司用的CA code GPS toolbox(this is matlab toolbox I write and use in my company for simulating a CA code in GPS)
- 2009-08-10 09:22:41下载
- 积分：1
-
sms
SMS短消息传输系统的程序代码，应用高级语言编写(SMS transfer systems)
- 2009-06-02 18:39:13下载
- 积分：1
-
Untitled
说明： 求阵列天线方向图，矩形栅格点平面阵方向图。(Array antenna pattern)
- 2019-04-03 22:29:38下载
- 积分：1
-
PCF-SMF
本软件使用matlab预言编写，用于分析光子晶体光纤空气孔直径，孔间距，等参数对光子晶体光纤单模特性的影响。(Matlab predicted the use of this software to prepare for the analysis of photonic crystal fiber air hole diameter, hole spacing, and other parameters on the photonic crystal fiber single-mode characteristics.)
- 2009-05-08 09:56:52下载
- 积分：1
-
channel_esti_em730a
代码为实现EM算法进行ofdm调制信号进行信道估计的仿真代码(source codes simulate the channel estimation using em algorithm)
- 2009-03-22 11:28:47下载
- 积分：1
-
btn
数字基带传输系统的matlab仿真，用4种码型(Digital baseband transmission system matlab simulation, with four kinds of code-type)
- 2008-05-11 10:51:48下载
- 积分：1
-
aaaa
把地理区域分成一个个小区，蜂窝系统在该区域内提供无线覆盖。把可用的频谱分成很多信道，每个小区分配一组信道。使用频分双工（FDD）。在小区间进行频率利用，N个小区构成一个簇，簇间进行频率复用。定义了传播特性（信道参数）以及同频小区的位置。信道的参数包括：小区半径，路径损耗指数，以分贝为单位的对数正态阴影的标准差，基站发射功率级，移动台发射功率级，每个小区的扇区数，扇区化天线的正反向比，要仿真的瞬时位置的组数，同频干扰阈值。(To a geographical area is divided into small areas, cellular systems in the region to provide wireless coverage. The available spectrum is divided into multi-channel, each plot the distribution of a group of channels. The use of frequency division duplex (FDD). In the district between the frequency of use, N plots constitute a cluster, cluster between frequency reuse. The definition of the propagation characteristics (channel parameters), as well as with the frequency of residential location. Channel parameters include: cell radius, path loss index to decibels for units Lognormal shadow of the standard deviation, the base station transmitter power level, mobile station transmitting power level, the number of sectors in each district, sector of the antenna the pros and cons to the ratio, to the transient simulation of the group a few positions, the same frequency interference threshold.)
- 2009-01-08 19:02:48下载
- 积分：1
-
GA-Optimization-of-Antenna-Array
本程序主要在MATLAB环境下实现笔状阵列天线的遗传算法的优化。(This procedure mainly in the MATLAB environment to achieve the pen-shaped array antenna genetic algorithm optimization.)
- 2020-07-03 09:20:01下载
- 积分：1
