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VBCRC16
自己做的CRC16校验例子,输入16进制数据,数据之间用空格,得到校验字节(The CRC16 checksum own example, enter the hexadecimal data, with a space between the data check byte)
- 2012-10-12 08:45:27下载
- 积分:1
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BPSK调制仿真
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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OFDM_matlab
基于梳状导频图案的OFDM系统估计,采用LS信道估计方法,和线性插值法,信道采用瑞丽多径信道。(The OFDM system based on comb pilot pattern estimation adopts LS channel estimation method and linear interpolation method, and the channel adopts the Ruili multipath channel.)
- 2021-04-10 21:28:58下载
- 积分:1
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NRF24L01-p2p-source
关于nrf24L01的开发设计资料,内含源码分析,可做为设计2.4G无线通信的开发参考(About nrf24L01 development and design information, containing source code analysis can be used as design 2.4G wireless communication development reference)
- 2013-08-31 10:49:03下载
- 积分:1
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MNC
实现LDPC编码和译码,利用C语言编写,在matlab环境中画性能曲线。(Realize encoding and decoding of LDPC codes)
- 2009-12-03 17:24:33下载
- 积分:1
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adc
将ADC对输入端口电压的转换结果按转换数据和对应的模拟电压的形式通过串口发送到PC机屏幕上显示(The ADC input port voltage conversion results by converting data and the corresponding analog voltage sent to the PC via the serial port on the screen)
- 2013-05-30 13:15:37下载
- 积分:1
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MySocket
vc++开发的socket通信类(含客户端和服务端)(socket communication(include client and server))
- 2013-08-12 14:13:49下载
- 积分:1
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12345321
VB写的一个简单的服务器与客户端程序,可以进行简单的本机通讯。经修改可以用于双机通讯。(VB to write a simple server and client, can be simple local communication. Modified can be used for two-machine communication.)
- 2011-05-09 16:49:33下载
- 积分:1
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tuoyuanquxian
说明: 关于椭圆算法的,比较通俗易懂,供初学者用(Algorithm on the elliptical, more user-friendly for beginners with)
- 2008-11-24 00:17:52下载
- 积分:1
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ofdm_cp
对ofdm不同cp长度下系统性能的分析(Performance analysis of OFDM systems with different CP lengths)
- 2021-01-29 22:08:34下载
- 积分:1