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485
51单片机主机和从机通过485测AD电压，有程序和仿真(51 single chip computer host and slave machine through 485 AD voltage, program and simulation)
- 2018-03-19 18:44:25下载
- 积分：1
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auto_filter
说明： 自适应滤波器作为一种现代滤波器，在通信领域有着广泛的应用. 阐述了LMS以及RLS自适应滤波器的相关原理及其在通信系统去噪中的应用，并用MATLAB对自适应滤波器的去噪结果进行了相应的仿真，仿真结果直观地体现了自适应滤波器的去噪性能。
本文对自适应滤波器系统进行剖析，基于QPSK调制后的信号，并对该信号加工成为不同信噪比如SNR=0Db、SNR=5dB、SNR=10dB的信号，进行了两种分别基于LMS自适应滤波和RLS自适应滤波的操作。并对添加了有色高频噪声等加噪处理来模拟通信过程中的实际应用环境，测试所设计的低通滤波器对于噪声信号的滤波性能，并对结果进行分析总结。(As a modern filter, adaptive filter has a wide range of applications in the field of communication. This paper expounds the relevant principles of LMS and RLS adaptive filter and their applications in the de-noising of communication system, and simulates the de-noising results of adaptive filter with MATLAB. The simulation results directly reflect the de-noising performance of adaptive filter.
In this paper, the adaptive filter system is analyzed, based on the QPSK modulated signal, and the signal is processed into different signal-to-noise, such as SNR = 0dB, SNR = 5dB, SNR = 10dB signal. Two kinds of operation are carried out based on LMS adaptive filtering and RLS adaptive filtering respectively. In order to simulate the practical application environment in the communication process, we add colored high-frequency noise to test the filtering performance of the designed low-pass filter for noise signal, and analyze and summarize the results.)
- 2021-02-01 21:28:05下载
- 积分：1
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C00-NTAH-20070827-008-LGE-PAPR-Reduction-for-OFDM
C00-NTAH-20070827-008-LGE-PAPR Reduction for OFDM
- 2014-09-01 00:32:48下载
- 积分：1
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edjqvmg86
轻松抓图袖珍版,可以帮你轻易抓取屏幕上任意你想要抓取的活动窗口,按F3键将选中图像复制到系统剪切板中,方便你随时,随地粘贴(Easy to grab the picture pocket version, can help you easily grab any screen you want to grab the active window, press F3 button will be selected image copy to the system cutting board, easy to you anytime, anywhere paste)
- 2018-10-27 18:05:36下载
- 积分：1
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卫星通信中数字调相信号调制方式识别方法研究
说明： 针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)
- 2020-06-21 09:20:02下载
- 积分：1
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NFC1
NFC协议第一部分，描述了NFC tag 1 通讯协议(NFC protocol first part describes the communication protocol NFC tag 1)
- 2016-06-26 11:19:30下载
- 积分：1
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BPSK的simulink仿真
对BPSK进行matlab仿真，包括完整参数，星座图(Matlab simulation of BPSK)
- 2017-09-18 20:16:39下载
- 积分：1
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Catalan
calculate catalan number
- 2013-11-06 12:07:53下载
- 积分：1
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dynamic-channel-allocation
GSM网络的动态信道分配，对于初学这方面的同学有很大帮助(GSM network, dynamic channel allocation, for the beginner in this area of great help to students)
- 2011-11-29 09:48:27下载
- 积分：1
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ex11111
信号处理综合建模仿真
1、 楼体模型的建立。
2、 实际环境干扰（如树木遮挡、环境噪声、系统内部噪声等）的加入。
3、 信号的反射与穿透衰减的考虑。
4、 天线扫描方式的确定。
5、 空间-SNR三维图像的绘制。(Integrated Modeling and Simulation of Signal Processing)
- 2019-03-30 12:27:25下载
- 积分：1
