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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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DecaRangeRTLS_ARM_2p10稳定版
用UWB技术实现定位的程序，定位精度高达10cm，STM32作为主控单元(UWB technology to achieve positioning procedures, positioning accuracy of up to 10cm, STM32 as the main control unit)
- 2020-06-29 21:00:02下载
- 积分：1
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256
数字基带信号通过瑞利信道（rayleichangh），在多径时延的条件下，通过自相关函数看其时延大小。(Digital baseband signal by Rayleigh channel (rayleichangh), under conditions of multipath delay, the autocorrelation function of the delay size.)
- 2012-05-02 16:51:33下载
- 积分：1
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doa-tools-master
所有有关DOA估计的程序和代码，相当于一个完整的工具箱(All programs and codes related to DOA estimation are equivalent to a complete toolbox.)
- 2020-12-04 20:19:23下载
- 积分：1
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Cpp
learning c++. it is good for start and beginners
- 2016-03-27 00:23:30下载
- 积分：1
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rs_code_sys
rs码通信系统的仿真实验，包括源程序和说明(rs code communication system simulation, including source and description)
- 2021-04-27 10:58:44下载
- 积分：1
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代码
说明： 基于MATLAB语言实现了BPSK、QPSK和QAM在数字通信中的误码率性能，并与理论性能进行了比较。实现了两个发射天线的分集，分析了分集提高误码率性能的原因和实质。(Based on MATLAB language, the BER performance of BPSK, QPSK and QAM in digital communication is realized and compared with the theoretical performance. The diversity of two transmit antennas is realized, and the reason and essence of diversity improving BER performance are analyzed.)
- 2020-08-14 09:17:47下载
- 积分：1
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汽车行业CAN通讯SAEJ1939标准英文版
说明： 汽车行业CAN通讯SAEJ1939标准英文版(Auto Industry CAN Communication SAEJ1939 Standard English Edition)
- 2020-06-18 00:20:01下载
- 积分：1
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11
说明： 浅析OPNET建模机制，适合初学者,里面讲解的很详细(Analysis of OPNET modeling mechanism, suitable for beginners)
- 2014-07-01 19:30:17下载
- 积分：1
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BOC信号频谱相关特性
说明： MATLAB代码，产生GNSS导航信号BOC调制的相关频谱特性(The generate of BOC signal AND ITS PDF)
- 2019-01-14 15:54:05下载
- 积分：1
