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基于小波分析的飛行信號(hào)頻率研究
首發(fā)時(shí)間:2025-03-18
王雨欣(2005),女,學(xué)生,通信工程
榮陽(yáng) 1榮陽(yáng)(2005),男,學(xué)生,通信工程
馬嘉澤 1馬嘉澤(2006),男,學(xué)生,通信工程
邊廷玥 1邊廷玥(1997),女,講師,通信工程
王詩(shī) 1王詩(shī)(1983),男,副教授,碩導(dǎo),認(rèn)知無(wú)線電
李順雨 1李順雨(2005),男,學(xué)生,通信工程
摘要:根據(jù)飛機(jī)實(shí)際接收信號(hào)的情況,分析不同條件下的噪聲特性對(duì)頻率估算算法的精度具有重要意義。高精度的頻率估算方法依賴于對(duì)接收信號(hào)噪聲的深入理解。本文提出了一種基于小波增強(qiáng)頻譜分析法的接收信號(hào)頻率估計(jì)方法。通過(guò)對(duì)飛機(jī)在不同飛行周期下的接收信號(hào)數(shù)據(jù)進(jìn)行分析,繪制了信號(hào)的時(shí)域圖和頻域圖,從而估計(jì)出接收信號(hào)的頻率。研究表明,小波增強(qiáng)頻譜分析法能有效提高頻率估算精度,尤其在處理復(fù)雜噪聲背景下表現(xiàn)優(yōu)異。?????
關(guān)鍵詞: 噪聲特性 小波增強(qiáng)頻譜分析法 時(shí)域圖 頻域圖??
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Research on Frequency Estimation of Flight Signals Based on
王雨欣(2005),女,學(xué)生,通信工程
RongYang 1榮陽(yáng)(2005),男,學(xué)生,通信工程
Majia Ze 1馬嘉澤(2006),男,學(xué)生,通信工程
Bianting Yue 1邊廷玥(1997),女,講師,通信工程
WangShi 1王詩(shī)(1983),男,副教授,碩導(dǎo),認(rèn)知無(wú)線電
Li Shunyu 1李順雨(2005),男,學(xué)生,通信工程
Abstract:Analyzing noise characteristics under different conditions is crucial for improving the accuracy of frequency estimation algorithms. High-precision frequency estimation relies on a thorough understanding of the noise in received signals. This paper presents a frequency estimation method based on wavelet-enhanced spectral analysis. By analyzing the received signal data from aircraft during different flight cycles, time-domain and frequency-domain plots were generated to estimate the signal frequency. The results show that the wavelet-enhanced spectral analysis method effectively improves frequency estimation accuracy, particularly in complex noise environments.?????
Keywords: Noise characteristics Wavelet-enhanced spectral analysis Time-domain plot Frequency-domain plot
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