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chatroom
该程序可以实现多个客户端互相通讯，如同聊天室(Multiple clients can communicate with each other, just like chat rooms)
- 2017-08-01 09:49:36下载
- 积分：1
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music
说明： 基于经典music算法及其修正算法的DOA估计以及性能仿真(DOA estimation and performance simulation based on classical Music algorithm and its modified algorithm)
- 2020-11-29 21:42:54下载
- 积分：1
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Nakagami
这是一个通信的Nakagami算法，理论值和仿真结果全都有，希望对大家有帮助。(This is a Nakagami algorithm for communication. Both theoretical and simulation results are available. I hope it will be helpful to you all.)
- 2019-03-08 13:24:54下载
- 积分：1
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bandpassfilter
HFSS 带通滤波器 微带结构 (HFSS microstrip structure band-pass filter)
- 2009-12-19 09:41:35下载
- 积分：1
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DDC
这是一篇介绍数字下变频中抽取滤波器设计的文章 我觉得很有指导意义，在此共享(this arcitle is dicrible the DDC design,very good)
- 2010-05-08 14:40:10下载
- 积分：1
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Realization_of_QPSK
说明： QPSK的MATLAB实现包括发送数据、QPSK比特映射、成型滤波、载波调制、载波解调、收成型匹配、IQ抽样判决、接收比特数据恢复8个模块(The MATLAB implementation of QPSK includes eight modules: sending data, QPSK bit mapping, shaping filtering, carrier modulation, carrier demodulation, shaping matching, IQ sampling decision and receiving bit data recovery.)
- 2019-04-23 10:10:31下载
- 积分：1
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BPSK调制仿真
说明： bpsk调制仿真，可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处，形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控（ASK）、频移键控（FSK）、绝对相移键控（PSK）、相对（差分）相移键控（DPSK）。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而，实际中的大多数信道（如）无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输，必须用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分：1
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OQPSK调制
说明： 基于OQPSK，高斯信道和瑞利信道的matlab仿真程序(Matlab simulation program based on OQPSK)
- 2019-02-26 19:12:16下载
- 积分：1
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dsdv
DSDV协议在ns2中的实现，可以直接使用，无需调试(DSDV protocol implementation in ns2, can be used directly, without debugging)
- 2011-06-02 12:03:09下载
- 积分：1
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pccp047
一系列包含串口、Modem、收发传真、终端仿真等方面的编程例子( A series of contains aspect the and so on string mouth, Modem,
receiving and dispatching facsimile, terminal simulation programming
example )
- 2020-06-26 11:40:01下载
- 积分：1
