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attachments_2009_11_17
voice recognition project on home application
- 2009-12-11 06:54:34下载
- 积分：1
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communication
迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡，迫零均衡(zero-forcing)
- 2010-12-12 09:46:08下载
- 积分：1
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B1
说明： mli vectorille modulation
- 2011-01-10 02:33:07下载
- 积分：1
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OFDM_Multipath_simulation
说明： OFDM是将高速串行数据分成成百上千路并行数据,并分别对不同的载频进行调制,这种并行传输体制大大扩展了符号的脉冲宽度,提高了抗多径衰落的性能。同时,在传统的频分复用方法中,各子载波之间的频谱互不重叠,频谱利用率较低。而采用OFDM技术,一个OFDM符号之内包括多个经过调制的子载波的合成信号,每个子载波在频谱上相互重叠,这些频谱在整个符号周期内满足正交性,因而在接受端可以保证无失真恢复,从而大大提高频谱利用率。(OFDM divides high-speed serial data into hundreds of parallel data channels and modulates different carrier frequency separately. This parallel transmission system greatly expands the pulse width of symbols and improves the performance of anti-multipath fading. At the same time, in the traditional method of Frequency Division multiplexing, the spectrum between the sub-carriers does not overlap each other, the spectrum utilization ratio is low. In the case of OFDM, an OFDM symbol consists of multiple modulated sub-carriers, each of which overlaps in the spectrum, which is orthogonal throughout the symbol period, thus, no distortion recovery can be ensured at the receiving end, thus greatly improving the spectrum utilization ratio.)
- 2021-01-06 11:49:43下载
- 积分：1
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05d30eba398d
Rbf
intelence artificial implementation
develop
- 2011-01-30 02:49:02下载
- 积分：1
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lianlu
卫星地球站传输链路计算，卫星通信中，卫星损耗的计算十分重要，用于判断通信质量，以及卫星载荷的饱和程度(Satellite earth station transmission link, satellite communication, satellite loss calculation is very important for judging the quality of communication, as well as satellite payload saturation level)
- 2013-04-20 22:59:59下载
- 积分：1
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Initial-Scripts
Power control, broadly speaking, is the intelligent selection of transmitter power output in a communication system to achieve good performance within the system. The notion of good performance can depend on context and may include optimizing metrics such as link data rate, network capacity, geographic coverage and range, and life of the network and network devices. Power control algorithms are used in many contexts, including cellular networks, sensor networks, wireless LANs, and DSL modems.
- 2015-01-17 18:34:10下载
- 积分：1
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variable
physics car simulation
- 2013-12-18 00:18:57下载
- 积分：1
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hwt
说明： 谐波小波波程序，包括几个例子，让大家可以对谐波小波处理信号有更加透彻深入的理解和认识。。。(Small wave harmonic procedures, including a few examples, so that we can handle signals of harmonic wavelet a more thorough understanding of and awareness. . .)
- 2011-04-08 14:32:46下载
- 积分：1
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tuxiangtuihua
图像锐化功能，基于梯度算法的~可以插入其他程序(Image sharpening, based on the gradient algorithm ~ can be inserted into other programs)
- 2011-05-24 19:39:55下载
- 积分：1
