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DWellsThesis
This thesis presents simulation data on array operation in wideband communication systems.
It is shown that array structures with closer inter-element spacing outperform structures with
much larger inter-element spacing. It is also shown that circular structures outperform linear
structures. This performance di erence between the classi cations of arrays is due largely
to the circular array s ability to handle high levels of interference. Even though a diversity
combining scheme (MRC) was used in the simulator, the arrays provided interference rejection
capabilities due to the closely spaced antenna elements.
- 2010-01-01 00:56:28下载
- 积分：1
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web_call
又一个利用网上寻呼提供商的web页面来发送网上寻呼的程序，可以支持很多提供商。(Another program which uses web pages of internet call provider to send internet calling , and supports many providers)
- 2002-01-01 21:21:41下载
- 积分：1
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PCM
在实际的调谐解调电路中，采用的是非相干载波解调，本振信号与发射端的载波信号存在频率偏差和相位抖动，因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决，得到的数字信号也不是原来发射端的调制信号，误差的积累将导致抽样判决后的误码率增大，因此数字QPSK解调电路要对载波误差进行补偿，减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)
- 2019-01-30 20:16:08下载
- 积分：1
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UDP
udp协议介绍 是一个无连接的协议，快速等(udp protocol described is a connectionless protocol, fast, etc.)
- 2011-07-30 22:02:17下载
- 积分：1
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LS_test
基于梳状导频的OFDM信道估计中LS算法的测试程序(LS algorithm testing program based on the the comb pilot of OFDM channel estimation)
- 2012-09-04 11:00:13下载
- 积分：1
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8456457457
手机RSS阅读器(html5)，应用程序编程源码，很好的参考资料。(Mobile phone RSS reader (HTML5), application programming source code, a good reference.)
- 2013-11-09 17:41:16下载
- 积分：1
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ACO
光通信中采用OFDM时，信号必须为非负实信号，因此通常采用DCO-OFDM或ACO-OFDM技术，此代码为ACO-OFDM(In VLC the signal has to be real and unipolar. Number of schemes in VLC are proposed in order to provide a real and unipolar signal like U-OFDM , Flip-OFDM , spectrally factorized pptical OFDM].)
- 2018-02-01 11:51:50下载
- 积分：1
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TP900S工具和驱动文件2.2(简版)
振中TP900S工具及驱动下载，仅供学习参考用途。(Vibrating TP900S Tool and Driver Download)
- 2018-12-15 12:33:32下载
- 积分：1
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ONVIF2.0协议珍藏版
ONVIF协议， 大华摄像头SDK开发说明(ONVIF protocol, Da Hua camera SDK Development Notes)
- 2018-10-12 01:40:49下载
- 积分：1
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FeliCaOnJapan
对FELICA在日本的应用情况进行了研究，并对Felica与手机结合的方式进行描述(FeliCa in Japan on the application of the study, and Felica and cell phone to describe the combination of)
- 2007-12-20 10:50:24下载
- 积分：1
