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kalman
Carrier-phase synchronization can be approached in a
general manner by estimating the multiplicative distortion (MD) to which
a baseband received signal in an RF or coherent optical transmission
system is subjected. This paper presents a unified modeling and
estimation of the MD in finite-alphabet digital communication systems. A
simple form of MD is the camer phase exp GO) which has to be estimated
and compensated for in a coherent receiver. A more general case with
fading must, however, allow for amplitude as well as phase variations of
the MD.
We assume a state-variable model for the MD and generally obtain a
nonlinear estimation problem with additional randomly-varying system
parameters such as received signal power, frequency offset, and Doppler
spread. An extended Kalman filter is then applied as a near-optimal
solution to the adaptive MD and channel parameter estimation problem.
Examples are given to show the use and some advantages of this scheme.
- 2007-09-18 21:06:09下载
- 积分:1
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matlabkuozhan
matlab扩展编程,很好的一版本书,适合matlab深入学习(matlab expand programming, a very good version of the book, suitable for matlab in-depth study)
- 2009-09-14 13:00:54下载
- 积分:1
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EMD
EMD的边际谱的算例,很实用,做这一块的快下(EMD example the marginal spectrum, it is practical to do this under a piece of the fast)
- 2010-11-19 12:43:45下载
- 积分:1
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MMSE
解相关及MMSE和传统检测器比较的仿真程序包括有远近,无远近,有躁,无躁。(decorrelation and MMSE and traditional Detectors comparison simulation program including length, no distance, a rash, without rashness.)
- 2021-04-20 14:58:50下载
- 积分:1
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SVPWM_VSI
说明: SVPWM是近年发展的一种比较新颖的控制方法,是由三相功率逆变器的六个功率开关元件组成的特定开关模式产生的脉宽调制波,能够使输出电流波形尽可能接近于理想的正弦波形。空间电压矢量PWM与传统的正弦PWM不同,它是从三相输出电压的整体效果出发,着眼于如何使电机获得理想圆形磁链轨迹。SVPWM技术与SPWM相比较,绕组电流波形的谐波成分小,使得电机转矩脉动降低,旋转磁场更逼近圆形,而且使直流母线电压的利用率有了很大提高,且更易于实现数字化。(SVPWM is a novel control method developed in recent years. It is a pulse width modulation wave generated by a specific switching mode consisting of six power switching elements of three-phase power inverters, which can make the output current waveform as close as possible to the ideal sinusoidal waveform. Space voltage vector PWM is different from traditional sinusoidal PWM. It is based on the overall effect of three-phase output voltage, focusing on how to obtain the ideal circular flux trajectory of the motor. Compared with SPWM, the harmonic component of winding current waveform is smaller, which reduces the torque ripple of motor, makes the rotating magnetic field more close to the circle, and improves the utilization ratio of DC bus voltage greatly, and makes it easier to realize digitization.)
- 2019-01-30 10:57:56下载
- 积分:1
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xiaobotztq1
用于小波瞬态特征提取,间断点的提取。首相经过数据滤波处理(wavlet)
- 2009-09-04 15:26:27下载
- 积分:1
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Development_of_location-aware_applications
位置感知应用程序市场
位置估算技术
其它S60 平台运行时中的位置API
使您的应用程序感知位置时需要考虑的因素
协助测试的开发工具。(Location-aware applications market position estimation techniques other S60 platform run-time the position of the API to your application-aware location factors to be considered to help test the development tools.)
- 2010-08-31 13:57:39下载
- 积分:1
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test_CA_cfar
基于ca cfar的恒虚警测试程序
基于ca cfar的恒虚警测试程序
基于ca cfar的恒虚警测试程序(Based ca cfar CFAR test program is based on ca cfar CFAR test program is based on ca cfar CFAR test program)
- 2020-11-15 09:19:41下载
- 积分:1
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LDPC-802_11n
ldpc的论文,希望对初学者有帮助,物品也是刚开始的。(LDPC papers, and they hope to be helpful for beginners, is also the beginning of articles.)
- 2008-04-14 10:42:53下载
- 积分:1
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PlateRecognition
车牌自动识别,采用形态学方法,附带有测试图,适应性较强(Automatic license plate recognition, using morphology, with a test pattern, adaptability)
- 2010-10-31 09:48:55下载
- 积分:1