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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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ADIBEAM
ADIBEAM
Abstract—the increase in navigation accuracy demanded by
EGNOS and Galileo and their future evolution encourages the
study and design of advance receiver architectures. In that
direction, the ADIBEAM project focuses on the design of high
accuracy ground stations, specifically GNSS Reference Stations, in
order to improve its robustness in front of multipath and
interference errors with the goal of achieving centimeter level
tracking accuracy. The adoption of antenna arrays and digital
beamforming at the ground reference station receivers is one of
the most promising approaches to cope with errors induced by
multipath and interference.
- 2012-01-23 23:20:55下载
- 积分：1
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An-Brief-Introduction-to-Polar-Codes
关于polar codes的源码，简单的仿真。(An Brief Introduction to Polar Codes)
- 2017-02-24 20:41:42下载
- 积分：1
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RAYLEIGH
TO PLOT THE RAYLEIGH DISTRIBUTION PLOT
- 2017-05-15 14:35:40下载
- 积分：1
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一种基于高阶累积量的数字调相信号识别方法
说明： 对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
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num
通信系统中常用的号码分析文档，非常实用，且好理解。(Communication system frequently used phone numbers of documents, very practical, and easy to understand.)
- 2020-11-20 21:39:37下载
- 积分：1
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internal-staffs-learning-materials
华为内部员工学习资料，对于想进华为的朋友会有很大帮助。(The internal staff s learning materials
in huawei is more helpfull for someone who want to go huawei.)
- 2012-02-17 11:43:08下载
- 积分：1
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passive-radar
无源探测定位方法研究很好的学习无源被动雷达 很高兴和大家交流(Good learning passive probe positioning method Passive radar is very happy and the exchange of)
- 2013-03-18 18:54:25下载
- 积分：1
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UnderthePCintheWindows95andsingle-chipserialcommun
在Windows95下PC机和单片机的串行通信。
基于32位操作系统Windows95的工业控制PC机和单片机间的串行通信，给出了用VC＋＋5．0和PL／M－96语言编写的串行通信程序(Under the PC in the Windows95 and single-chip serial communication. 32-bit operating system based on the Windows95 machine and industrial control PC serial communication between the single-chip, is given by VC++5.0 and PL/M-96 language serial communication program)
- 2009-05-31 15:11:53下载
- 积分：1
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维纳滤波
说明： 维纳滤波matlab代码，对语音去噪有较明显效果，可做去噪算法借鉴(Wiener filter matlab code,It has obvious effect on speech denoising and can be used for reference in denoising algorithm)
- 2020-05-12 17:04:11下载
- 积分：1
