【正文快照】: 1 引 言聚束模式有许多突出的优点,特别是在小成像区域,经过模拟解调频(Dechirp)处理后的回波信号带宽变窄[1,2],因而对采样频率的要求降低,相应的数据量和成像处理的计算量可大幅度减小,实时处理性能变好。
基于16个网页-相关网页
进行解调频 Dechirping
频率解调 frequency demodulator ; The frequency solution adjust ; frequency demodulation
解调载频控制 demodulation carrier frequency control
视频解调 video demodulator ; video demodulator,video demodulator ; video audiencedulator
调频解调器 FM demodulator ; frequency modulation demodulator
射频解调器 RF Demodulator ; radio frequency demodulator
音频解调器 audio demodulator
解调导频 DMRS
视频解调器 video demodulator
For ship target, the effect of multi-dimensional rotation to Doppler frequency shift is analyzed and dechirp is proposed to separate scatterers.
对于舰船目标,分析了目标多维转动对多普勒的影响,提出在短时间内解调频分离各散射点。
参考来源 - 雷达目标三维成像技术研究First, this paper proposes a novel frequency demodulation algorithm, where signals are first processed by autocorrelation analysis to eliminate random noise, and then implemented envelope demodulation to extract original modulation frequencies.
首先针对齿轮裂纹等局部故障的早期诊断,提出了一种时延自相关解调频方法。 该方法先对信号进行自相关预处理,然后再对信号的时延自相关函数进行包络解调,可以得原信号的调制频率。
参考来源 - 机械故障诊断中的微弱信号提取方法的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
论文主要研究了调频收音机中RDS信号解调算法及其算法的进一步探讨。
The main target of this thesis is description the de-modulation algorithm of the RDS (Radio Data System) system in FM radio and further research in this topic.
结合无线电遥测接收机的设计,论述和分析了软件无线电技术中的数字下变频和调频数字解调技术在遥测接收机中的应用。
Combining to devise radio telemetry receiver, the application of digital down converter and frequency demodulation in software radio is discussed and analysed.
实现信号的调制解调功能,包括各类调制如ask(调幅),PSK(调相),FSK(调频)。
Realize signal modulation and demodulation functions, including various types of modulation such as ASK (amplitude modulation), PSK (phase modulation), FSK (FM).
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