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chapter4_3
- 图像在传输过程中,传递函数对高频成分有衰减作用,造成图像模糊,细节轮廓不清楚。图像锐化就是补偿图像的轮廓,增强图像的边缘及灰度跳变的部分,使图像变得清晰。亦分空域处理和频域处理两类[3]。-Image in the transmission process, the transfer function of the role of high frequency components are attenuated, resulting in image blurring, the details
nirav
- it is to recieve the frequency hopping data
FHSS
- To improve the performance of short-range wireless communications, channel quality must be improved by avoiding interference and multi-path fading. Frequency hopping spread spectrum (FHSS) is a transmission technique where the carrier hops freque
LT8900_-CN
- 包括射频前端和数字基带的单芯片解决方案。 支持跳频 支持SPI和I2C接口 内置auto_ack功能 数据率1Mbps 极低功耗 支持信号能量检测 支持QFN4*4和SSOP16的封装-Single chip- including RF front-end and digital baseband solutions. Support f
ns3-freqhopp
- this is a code of ns3 frequency hopping
Fast-Switching-PLL-Synthesizer
- A 10μs Fast Switching PLL Synthesizer for a GSM/EDGE Base-Station.介绍快速跳频锁相环的非常好的一篇文章!-A 10μs Fast Switching PLL Synthesizer for a GSM/EDGE Base-Station.A very good article on the fast frequency hopping phase-locked loop is introduced!
bijiaohaochengxu
- 利用图像处理法分析跳频信号,修正视频图,并估计其参数-Analysis of frequency hopping signal, correcting video images using image processing method, and estimating its parameters
image
- 利用canny算子分割图像,得到修正的跳频信号的二值化时频图-Use canny operator image segmentation, frequency hopping signals corrected binarized time-frequency diagram
putu
- 谱图法分析跳频信号,对其做参数估计,一种分析跳频信号新方法,实际有效-Hopping signal spectrum analysis, an estimate of their arguments do A new method of frequency hopping signal analysis, real effective
MYRSTFT
- myriad滤波器处理脉冲噪声并对跳频信号做参数估计,实际有效,可运行-myriad impulse noise filter processing and parameter estimation of frequency hopping signals do, practical and effective, It can run
JTIDS-system-data-model
- 该文简要说明了JTIDS 的工作方式 , 从JTIDS 系统的数据模型入手 , 完成了包括RS编码 、 交织编码 、 软扩频 、 MSK 调制 、 跳频 、 跳时在内的整个JTIDS 系统仿真-This paper briefly describes the working mode of JTIDS, starting the JTIDS system data model, including the completion of the entire JTIDS system simula
ofdm-simulink
- 在现代无线通信技术中,扩频通信是一种具有较强抗干扰性能的技术,正交频分复用(OFDM)是一种具有较高数据传输速率和频谱利用率,并能有效对抗频率选择性衰落的多载波调制技术,因而将这二者结合起来构建系统势必会进一步提高系统的抗干扰和抗衰落性能,研究其结合技术也逐渐成为无线通信领域的热点。随着3G的兴起,即将推出的LTE也将采用OFDM技术(正交频分多路复用)。 由于OFDM的多载波特性,使得直接序列扩频技术和跳频技术能够与OFDM技术进行有效的结合。在本文中,我们研究了OFDM)以及相关抗干扰抗
freqpaper
- 跳频电台是按全网预设的程序,自动操控网内所有台站在一秒钟内同步改变频率多次,并在每个跳频信道上短暂停留。周期性的同步信令从主站发出,指令所有的从站同时跳跃式更换工作频率。跳频电台的目的是增强抗干扰能力和通信隐蔽性,是电子对抗技术发展的产物(The frequency hopping station is a program that is preset by the whole network, and automatically controls all stations in the net