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tcp_udp_web_tools-pyqt5-master
说明： 使用pyqt编写的界面程序，实现串口网络通信(The interface program written by pyqt is used to realize the serial port network communication)
- 2020-01-07 15:48:10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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ra
说明： repeat-accumulate codes (RA codes)
- 2017-03-24 15:05:21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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DSTBC
4发1收差分空时分组码系统的编码和译码程序(DSTBC coding and decoding program)
- 2009-02-24 16:06:22下载
- 积分：1
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stbc_ofdm(time)
从时域分析比较了ofdm和stbc与ofdm结合的性能差别(from time-domain analysis and comparison of OFDM stbc OFDM combined with the performance difference)
- 2021-04-25 04:28:46下载
- 积分：1
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spetralcorrelation
循环谱估计算法，SSCA，FAM，可以运行，结果不错，你值得拥有(Cyclic spectrum estimation algorithm, SSCA, FAM, you can run, and the results are good, you deserve)
- 2017-09-03 21:31:26下载
- 积分：1
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olen
olen法波束形成，可产生任意指定的波束图。仿真中的例子为cheb滤波器。也可自己指定(France olen beamforming, can produce any given beam pattern. Simulation example cheb filter. Can also specify)
- 2012-06-05 16:57:51下载
- 积分：1
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SMSAlarm
这是一个短信报警的小程序，它通过ADO操作读取发送的短信号码和内容，自动发送短信并产生日志(This is a message warning of a small program that reads through the ADO operation number and content of messages sent automatically send text messages and generate the log)
- 2009-10-13 08:53:22下载
- 积分：1
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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
