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Beamformingformovingsourcespeechenhancement
争对移动声源采用波束形成进行语音增强,提出一种约束子带波束形成算法。其波束形成器基于一个软约束,其目的是要使波束指向特定的区域即声源方向。而其核心在于首先要进行声源定位,获得尽量准确的方位信息,然后构造软约束条件,用于波束形成。且在此过程中不断跟踪声源的移动情况。在构造的约束条件中,需要知道声源的二维信息,即与麦克风阵列的距离和方向角,“软”体现在对距离和方向角的确定都是在一定范围内的,有待进一步更正。(Between the mobile sound source using beamforming for speech enhancement, a constrained subband beamforming algorithm. Its beamformer based on a soft constraints, the aim is to make the beam point to a specific region that is the direction of the sound source. And its core is the first to sound source location, access to location information as accurately as possible, and then construct the conditions of soft constraints for beamforming. And in the process continuously tracking the movement of a sound source. Structure at the binding conditions, need to know the two-dimensional sound source information, that is, with the microphone array the distance and direction angle, the " soft" embodied in the distance and direction angle of the determination are within the scope must be further corrected .)
- 2009-03-06 09:22:30下载
- 积分:1
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paper5
5 System design and signal processing for OFDM-based wireless communication systems.pdf
- 2014-05-10 09:26:03下载
- 积分:1
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3
说明: 3. 瑞利信道中的调制解调、信道估计:
(1) 请推导出单径瑞利信道中的BPSK相干解调的理论误码率性能,并画出比特信噪比与误码率的关系曲线。
(2) 在单径瑞利信道中,请设计一种时分的导引辅助的信道估计方法,用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与误码率的关系曲线,并与理论误码率曲线进行对比。(3. Modulation demodulation and channel estimation in Rayleigh channel:
(1) deduce the theoretical bit error rate performance of BPSK coherent demodulation in single-path Rayleigh channel, and draw the relationship curve between bit signal-to-noise ratio and bit error rate.
(2) in single-path Rayleigh channel, please design a time-division guidance assisted channel estimation method, Simulink simulation, measure the bit error rate performance of BPSK, draw the relationship curve between bit SNR and bit error rate, and compare with the theoretical bit error rate curve.)
- 2019-01-15 10:50:36下载
- 积分:1
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2018
心电信号去噪方法等研究,采集,去除噪声等(Research on the denoising method of ECG signal, collection, noise removal, etc.)
- 2018-03-26 11:48:15下载
- 积分:1
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OFDM
一个相对完整的OFDM通信系统的仿真设计,包括编码,调制,IFFT,上下变频,高斯信道建模,FFT,PAPR抑制,各种同步,解调和解码等模块,并统括系统性能的仿真验证了系统设计的可靠性。(OFDM:
coding modulation IFFT AWGN Mode FFT ……)
- 2012-06-26 21:25:37下载
- 积分:1
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gbcemu
说明: 手机游戏模拟器 对于开发手机游戏的朋友来说很难得 。只有源代码 没有文档(Mobile phone game emulator for the development of mobile games for a rare friend. Not only the source code documentation)
- 2008-09-15 15:22:13下载
- 积分:1
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88658438l1_OMP_matlab
基于Matlab的压缩感知信道估计算法 基于导频的信道估计 MMSE算法(Compressed Sensing Channel Estimation Based on MATLAB)
- 2021-01-06 16:48:53下载
- 积分:1
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Carrier-Frequency
MPSK QAM MASK MPSK信号载频估计matlab程序(matlab program of estimating Carrier Frequency of MPSK QAM MASK MPSK signal )
- 2012-02-23 18:11:44下载
- 积分:1
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cdma_matongbu
说明: cdma的码同步实现,使用matlab实现(Code synchronization of CDMA)
- 2020-11-20 09:15:32下载
- 积分:1
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cordic
实现可连续输入数据做三角函数变换处理,通过verilog代码实现,(It realizes triangular function transformation for continuous input data.)
- 2020-06-21 22:40:01下载
- 积分:1