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PPT
扩频通信,即扩展频谱通信(Spread Spectrum Communication),它与光纤通信、卫星通信,一同被誉为进入信息时代的三大高技术通信传输方式。
- 2011-12-15 20:30:31下载
- 积分:1
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aoc_song
The future satellite communication systems are re-
quired to support the higher transmission data rate
for providing the multimedia services by employing
the e铿僣ient modulation method such as multi-level
QAM.
- 2009-03-13 17:44:21下载
- 积分:1
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NVP6134B AHD RX 芯片支持300MP摄像机 NVP6134B_Product_Brief
NVP6134B AHD RX 芯片支持300MP摄像机(The NVP6134B AHD RX chip supports 300MP cameras)
- 2020-12-18 10:39:10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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cdlab
this file talk about network
- 2012-10-13 08:30:27下载
- 积分:1
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4G, LTE-Advanced Pro and The Road to 5G
本书描述了4G LTE / 5G NR 无线接入技术。(This book describes LTE, developed in 3GPP and providing true fourth-generation (4G) broadband mobile access, as well as the new radio-access technology
3GPP is currently working on. Together, these two technologies will provide 5G wireless access.)
- 2018-07-25 13:33:27下载
- 积分:1
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05441004
Multiple input multiple output techniques combined
with orthogonal frequency division multiplexing (MIMO-OFDM)
provide a promising approach for wireless systems. However, a
serious drawback of the OFDM system is the high peak-toaverage
power ratio (PAPR), which may severely affect the
power efficiency of RF power amplifiers. In this paper, we
propose a simple method to reduce the PAPR of MIMO-OFDM
signals based on the use of unused subcarriers. Instead of
processing the signals at each transmitter separately, a peak
cancelling signal is generated at one antenna and is then applied
to all the others with only simple modifications. Simulation has
shown that a minimum 2 dB reduction in PAPR can be achieved
for all transmit signals using this approach. As the signal
processing is nearly all done at a single transmitter, repetition of
the operations at each transmitter is avoided, and therefore the
overall cost of the system can be significantly reduced.
- 2011-11-05 01:46:42下载
- 积分:1
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spectral-communication
扩频通信完整的课件和习题答案,清华经典教材,学习无线移动以及跳频通信的基础(Spread spectrum communication courseware and exercises complete answer, Tsinghua classic textbook, learning, and frequency hopping wireless mobile communication base)
- 2011-11-18 09:39:47下载
- 积分:1
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pipeilvbo
匹配滤波器的实现。主要是通过fft变化使输出自相关最大,在通过滤波器。(Matched filter implementation. Mainly through changes in the output autocorrelation fft the largest through the filter.)
- 2010-01-03 18:14:33下载
- 积分:1
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Matlab-STK
Matlab与STK连接函数库,可以实现Matlab与STK连接(Matlab connection with the STK library)
- 2011-05-07 17:42:05下载
- 积分:1