-
PCALEv1073A_FI
说明： automatic link establishment radio software
- 2019-02-14 17:55:00下载
- 积分：1
-
MIMO通信系统
这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。
此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训
练符号的信道估计等通信模块。(This is a simulation design of a MIMO_OFDM communication system based on space time block coding.
The system includes QPSK modulation and demodulation, IFFT modulation, space-time codec, and training based on training.
A communication module, such as the channel estimation of a symbol.)
- 2018-03-13 10:05:38下载
- 积分：1
-
CORBA
关于CORBA的源代码,关于回调的动能描述.(SOURCE CODE OF CORBA)
- 2011-06-27 08:43:20下载
- 积分：1
-
射线信道模型
说明： 这是射线信道模型的代码。里面有多个m文件(This is the code for the ray channel model. There are multiple M files in it.)
- 2020-06-17 12:00:01下载
- 积分：1
-
multipath_doppler
对移动通信中的多径多普勒频移进行详细的仿真，对学习这个的朋友有极大的帮助(Of mobile communication in multi-path Doppler frequency shift to conduct a detailed simulation study of the friends of great help)
- 2021-03-22 14:59:17下载
- 积分：1
-
techspeech-gsm
介绍移动通信gsm原理的书籍，对从事移动通信工作或研究的人员提供参考和帮助。(introduced mobile communications gsm tenets of books, right to engage in mobile communications work or research personnel with information and help.)
- 2007-05-27 12:47:29下载
- 积分：1
-
ra8875 _ spi 4线硬件
说明： STM32F4 SPI 4线驱动RA8875 彩屏方案(stm32f4 driver ra8875 TFT lcd display)
- 2020-11-13 12:10:48下载
- 积分：1
-
user_two
Ds_CDMA EASI 算法使用两个用户的分离实现PN序列以及用户信息的分离(To solve the problem of the direct sequence code division multiple access (DS-CDMA) system multiuser detection, this paper proposes a variable step-size based on performance index (PI) EASI algorithm for information code and chip sequence blind estimation)
- 2013-08-26 10:17:02下载
- 积分：1
-
2
说明： 2. 关于无线信道的多普勒谱，请回答以下问题：
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions:
(1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing;
(2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape;
(3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)
- 2021-01-23 19:48:44下载
- 积分：1
-
STM32F103C8小系统
说明： STM32F103C8T6最小系统资料包。最小系统板资料，通用资料。(Minimum system board data, general information.)
- 2020-10-14 16:22:15下载
- 积分：1
