Description: 国家自然基金项目文章，博导撰写，FFT解调的短波跳频系统自适应实时信道估值-State Fund for Nature project article, written civilians, FFT demodulator the shortwave frequency hopping systems adaptive real-time channel valuation Platform: |
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Author:林欣欣 |
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Description: 国家自然基金项目文章，博导撰写，FFT解调的短波跳频系统自适应实时信道估值-State Fund for Nature project article, written civilians, FFT demodulator the shortwave frequency hopping systems adaptive real-time channel valuation Platform: |
Size: 124928 |
Author:林欣欣 |
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Description: 自适应跳频技术及其实现.pdf
介绍了自适应跳频基本原理和关键技术和实现方法。-Adaptive frequency hopping technology and its realization. Pdf introduced the basic principles of adaptive frequency hopping and the key technology and realization method. Platform: |
Size: 223232 |
Author:阿光 |
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Description: 快速自适应算法结合高速处理器件在跳频电台频率估计中的应用.pdf-Fast adaptive algorithm combines high-speed processing devices in the frequency-hopping radio frequency estimation application. Pdf Platform: |
Size: 160768 |
Author:z |
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Description: In this paper, we investigate the use of Adaptive Frequency
Hopping (AFH) techniques aimed at modifying the Bluetooth frequency
hopping sequence in the presence of WLAN direct sequence spread spectrum
devices. Platform: |
Size: 47104 |
Author:ibbu |
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Description: 为了进一步提高直接序列／跳频（ＤＳ／ＦＨ）扩频系统的抗干扰能力，基于小波包变换结合递归最小二乘算法设计
了一种变换域自适应干扰抑制算法，该算法采用小波包分解定位窄带干扰，递归最小二乘算法抑制窄带干扰。通过蒙特卡
罗仿真分析在增加抗干扰模块后，ＤＳ／ＦＨ系统工作在准静态时，在不同信噪比条件下抗窄带干扰性能。仿真结果表明：该
算法具有较强的自适应性以及抗窄带干扰能力，其性能优于传统的直接置零法，适用于多音干扰下的恶劣通信环境。-In order to further improve the anti-jamming capability of direct sequence/frequency-hopping spread spectrum system (DS/FH), based on wavelet packet transform combined with recursive least squares algorithm design a transform domain adaptive interference suppression algorithm, the algorithm uses wavelet packet decomposition positioning narrowband interference, narrowband interference suppression recursive least squares algorithm. By Monte Carlo simulation analysis to increase the anti-jamming module DS/FH system work in the quasi-static, in different SNR anti narrowband interference performance. Simulation results show that: the algorithm has strong adaptability and resistance to narrowband interference ability, its performance is superior to the traditional method of direct zero, poor communication environment suitable for multi-tone interference. Platform: |
Size: 301056 |
Author:dm |
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Description: 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 frequency to
frequency. For frequency hopping a mechanism must be designed so that the data can be
transmitted in a clear channel and avoid congested channels. Adaptive frequency hopping is
a system which is used to improve immunity toward frequency interference by avoiding
using congested frequency channels in hopping sequence. Mathematical modelling is used
to simulate and analyze the performance improvement by using frequency hopping spread
spectrum with popular modulation schemes, and also the hopping channel situations are
investigated.-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 frequency to
frequency. For frequency hopping a mechanism must be designed so that the data can be
transmitted in a clear channel and avoid congested channels. Adaptive frequency hopping is
a system which is used to improve immunity toward frequency interference by avoiding
using congested frequency channels in hopping sequence. Mathematical modelling is used
to simulate and analyze the performance improvement by using frequency hopping spread
spectrum with popular modulation schemes, and also the hopping channel situations are
investigated. Platform: |
Size: 263168 |
Author:tag |
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Search - adaptive frequency hopping