-
LDPC_BSN
随机方法构造的LDPC码，码长可变，无四环(random ldpc,code length can be changed)
- 2021-04-18 11:38:52下载
- 积分：1
-
USB-2.0-Host
its a useful document about USB2 HOST
- 2011-06-22 05:30:53下载
- 积分：1
-
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
-
gmsk
说明： ：为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系，分析了GMSK信
号调制原理和滤波器传递函数，建立了GMSK调制和解调模型。(: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation principle and the filter transfer function established model for GMSK modulation and demodulation.)
- 2010-03-16 15:43:36下载
- 积分：1
-
AbstractPTOC
this is simply a report on the fading channel on different modulation scheme
- 2013-08-21 23:25:29下载
- 积分：1
-
HCF-Spec099-(Command-Summary-Specifiction)
HART Communication Foundation - Command Summary Specification
- 2020-11-20 14:39:36下载
- 积分：1
-
xianda-zhang
张贤达的盲信号处理讲义
包括盲源分离，斜投影。联合对角化。非负矩阵分解的介绍(blind source separation by Pro. Zhang xian da.)
- 2011-07-01 23:07:50下载
- 积分：1
-
communication
一份红外通讯的编码设计,已经经过实验，支持一对多。(Encoding of an infrared communication design, and after the experiment, to support one to many.)
- 2012-04-11 11:42:38下载
- 积分：1
-
GTM900AT
华为GTM900AT命令手册，对开发GPRS具有指导意义(Huawei GTM900 AT command manual，It has a guiding significance to develop GPRS
)
- 2012-12-06 16:48:43下载
- 积分：1
-
pbx
A C code for reading/writing data to ProSlic Si3200/3220 using CodeVision
- 2011-07-21 15:09:18下载
- 积分：1
