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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
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DS-THEROY
D-S证据理论的MATLAB代码函数文件
根据D-S理论，可以进行模式分类，消除不确定性。并附有能量检测的D-S判断函数文件、自己论文里的代码，希望对你有用(Code function file of D-S evidence theory in MATLAB. it can accomplish mode classification and eliminate uncertainty. besides that it includes that D-S operation in energy detection technology function file. this file has been used in my thesis, holp it can help you.)
- 2011-05-09 16:31:40下载
- 积分：1
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Trackdemo
用于对基于GOLD码的串行捕获算法，可以自定义信噪比，待捕获信号参数，代码分成搜索跟踪和捕获两部分，其中搜索的步长等参数也可以自定义，代码中acquiresignal.m部分为最终捕获相位展示的主程序。(For the serial acquisition algorithm based on GOLD code, we can customize the signal-to-noise ratio and the parameters of the signal to be captured. The code is divided into search part and capture part, The parameters such as search step can also be customized. Acquiresignal.m part is the main progress to output the results of the capture of phase.)
- 2019-05-28 15:09:06下载
- 积分：1
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SDR
一个DQPSK信号接收与发送部分的软硬件设计。其中IF=70MHZ，信息速率=10MBS，采用带通信号采样技术，数字正交解调和调制技术。NCO频率分辨率为32位，相位分辨率为10位(A DQPSK signal reception and transmission part of the software and hardware design. Which IF = 70MHZ, information rate = 10MBS, the use of bandpass sampling technique, the digital quadrature demodulation and modulation techniques. NCO frequency resolution of 32, phase resolution of 10)
- 2007-09-27 15:13:41下载
- 积分：1
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script16qam_ser
Derive the theoretical 16QAM bit error rate (BER) with Gray coded constellation mapping in AWGN
- 2020-12-01 04:29:27下载
- 积分：1
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用K-means算法对数据进行聚类分析 Kmeans
用K-means算法对数据进行聚类分析，得到不同K值情况下的聚类结果并绘制出了J-K关系图。(The K-means algorithm is used to cluster the data, and the clustering results are obtained under different K values. The J-K relation graph is drawn.)
- 2017-04-19 20:36:44下载
- 积分：1
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multipath_code
说明： 包含三种3GPP中典型的多径信道，对于信道仿真有很大的帮助(3GPP contains three types of typical multi-path channel, the channel simulation is very useful to)
- 2008-10-22 09:13:17下载
- 积分：1
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JavaJICQ)
说明： java编写完成的简单通信工具。类似于ICQ(prepared a simple communications tool. Similar to ICQ)
- 2006-03-20 13:49:36下载
- 积分：1
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DVB-T-simulink-simulation
DVB-T simulink simulation
- 2011-06-30 09:55:31下载
- 积分：1
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第三章matlab程序
雷达回波脉冲压缩常用代码，包括线性调频信号的时频特性，脉冲压缩，压缩后拓展等(Common codes for radar echo pulse compression, including time-frequency characteristics of LFM signal, pulse compression, expansion after compression, etc.)
- 2019-05-11 11:16:55下载
- 积分：1
