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QAM
对数字信号进行相位幅度调制，并在接收端成功解调(QAM of Digital Signal and Successful Demodulation at Receiver)
- 2019-04-22 19:51:29下载
- 积分：1
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Sweepfreq
扫频信号的产生，以及扫频信号的时频分析；(The generation of sweep frequency signal and the time frequency analysis of sweep signal;)
- 2018-01-18 17:33:19下载
- 积分：1
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enet-at002_-en-p
EtherNet/IP Socket Interface(This publication describes the socket interface that you can use to program
MSG instructions to communicate between a Logix5000 controller via an
EtherNet/IP module and Ethernet devices that do not support the EtherNet/IP
application protocol, such as bar code scanners,RFID readers,or other standard
Ethernet devices.)
- 2018-06-30 16:01:49下载
- 积分：1
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宽带FIR波束形成
说明： 用自适应方法设计具有特定频率响应的FIR滤波器用于进行时域宽带波束形成(Adaptive design of FIR filter with specific frequency response for time domain broadband beamforming)
- 2020-01-26 21:44:20下载
- 积分：1
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ofdm_psd_spectrum
OFDM功率谱密度和OFDM子载波频谱/仿真分析OFDM信号的频谱特性和功率谱特性(The spectrum characteristics and power spectrum characteristics of OFDM signals are simulated and analyzed)
- 2020-11-19 22:09:37下载
- 积分：1
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6
说明： 6. 在三条径的瑞利信道中，对于OFDM：
(1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真。画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。
(2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(6. In the three-path Rayleigh channel, for OFDM:
(1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn.
(2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability.
(3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)
- 2019-01-15 10:59:38下载
- 积分：1
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Satellite-Communications-Research-Trends-and-Open
the satellite communication this paper introduced
- 2012-12-18 07:15:33下载
- 积分：1
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doa_signal
低信噪比条件下的高分辨DOA估计算法,提出一种基于多级维纳滤波器(MSWF)的信号波达方向(DOA)估计算法。通过测试信号子空间的估计值与噪声子空间的正交性实
现 DOA粗估计，通过测试MSWF 分解的互相关函数实现信号 DOA 的精估计。仿真实验表明，在低信噪比条件下，该算法比已有的子空
间类算法有更好的分辨率和误差性能。(Put forward a kind of multistage Wiener filter (MSWF) based on the signal direction of arrival (DOA) estimation algorithm. By testing the orthogonality between the estimated values of the signal subspace and the noise subspace
Now DOA coarse estimation, by testing the MSWF decomposition of the cross-correlation function to achieve accurate estimation of signal DOA. Simulation results show that the proposed algorithm is more efficient than the existing subspace in low SNR conditions
The inter class algorithm has better resolution and error performance.)
- 2017-02-21 10:44:20下载
- 积分：1
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cod14751
说明： 这是从IGS上下的精密卫星钟差信息
间隔为30秒的钟差信息
希望对相关人员有所帮助(This is down from the IGS precise satellite clock difference information 30 seconds interval clock difference information related personnel would like to help)
- 2008-09-17 23:33:15下载
- 积分：1
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rayl
基于MATLAB的瑞利分布仿真，对5条路径的瑞利信道进行了仿真(Rayleigh distribution based on MATLAB simulation, five-path Rayleigh channel simulation)
- 2012-09-03 17:26:36下载
- 积分：1
