-
asd
航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency
)
- 2011-07-13 11:21:08下载
- 积分：1
-
main_OFDM
说明： LTE ofdm编码调制解调仿真，平台为matlab(Simulation of OFDM coded modulation and demodulation)
- 2021-02-02 00:06:04下载
- 积分：1
-
GA2
说明： 本源码实现遗传算法，用于RA准则下的多用户OFDM自适应资源分配(The source code implements genetic algorithm for multi-user OFDM adaptive resource allocation under RA criterion)
- 2019-05-21 22:18:16下载
- 积分：1
-
Kalman-toolbox
卡尔曼滤波器工具箱，非常适合初学者学习卡尔曼滤波器，里面有比较详细地程序(Kalman Filter toolbox MATLAB)
- 2020-12-18 16:19:11下载
- 积分：1
-
1828865a
说明： 本程序是QPSK的AWGN通道下的误码率分析，里面包括matlab源程序，(Analysis of BER in AWGN channel of QPSK)
- 2020-07-10 21:02:01下载
- 积分：1
-
cowputer__computer
超宽带UWB,包括 uwb mdl UWB model - open this to begin uwb_lib mdl Libr()
- 2018-02-01 22:51:18下载
- 积分：1
-
bluetooth(ok)-20190911
说明： 一个基于OPNET的D2D通信模拟代码，主要是简单的模型(A D2D communication simulation code based on OPNET)
- 2021-04-21 10:45:21下载
- 积分：1
-
wsn_matlab
A sample wireless sensor network simulation module developed using matlab. It is very useful for wireless network simulations. It is like NS2 , Glomosim , QualNet , OpNet.
- 2010-01-11 17:52:00下载
- 积分：1
-
TD-SCDMA物理层原理
TD-SCDMA物理层原理，了解物理层技术，了解信道编码的基本原理。(TD-SCDMA Physical Layer Principle)
- 2020-06-25 19:40:02下载
- 积分：1
-
vhdl1008
PCI slave IP core, in VHDL language ,has been verified,it is very easy to use.
it is an ideal IP to study PCI,design PCI Bridge
- 2020-06-18 18:20:01下载
- 积分：1
