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用VHDL语言在CPLD_FPGA上实现浮点运算
说明： 用VHDL语言在CPLD/FPGA上实现浮点运算的方法(in VHDL CPLD/FPGA achieve floating-point computation methods)
- 2005-12-23 13:05:42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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opticalcommunication1
optical cummunication examples
- 2012-01-12 22:10:44下载
- 积分：1
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Designing.a.Wireless.Network
This book is very nice for designing a wireless network which describes in details how the wireless systems are designed.
- 2012-01-31 18:40:25下载
- 积分：1
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802.16标准
802.16E的协议文档，完整版本。其中包括3个版本。(802.16E protocol document, full version.)
- 2020-06-19 02:40:01下载
- 积分：1
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AREPS_IEEE
美国海军开发的雷达传输损耗预测、计算软件AREPS的说明(The Space and Naval Warfare System Center, San Diego has a full spectrum research and development program with a long and proud history of rapidly responding to critical fleet requirements and deploying systems to address these requirements. One such system is the new Advanced Refractive Effects Prediction System (AREPS).)
- 2020-09-02 21:58:08下载
- 积分：1
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17869356wendu
有关CC2430的文档，里面的东西很实用，希望对你有帮助(The CC2430 document, which is very useful stuff, want to help you)
- 2010-03-10 12:43:37下载
- 积分：1
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qqxgn
分析了该信号的时域、频域、倒谱，循环谱等,包括广义互相关函数GCC时延估计，这个有中文注释，看得明白。( Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Including the generalized cross-correlation function GCC time delay estimation, The Chinese have a comment, understand it.)
- 2017-04-18 12:39:50下载
- 积分：1
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IEC-61850标准[中文.完整版]
说明： IEC-61850标准分析完整中文版（自用）(IEC-61850 standard analysis)
- 2020-08-18 16:08:21下载
- 积分：1
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xws-security-3.0
xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)
- 2014-04-23 16:57:39下载
- 积分：1
