基于到達(dá)時(shí)間差直方圖的信號(hào)分選算法研究

楊翔; 顧洪宇

doi:10.11999/JEIT150209

基于到達(dá)時(shí)間差直方圖的信號(hào)分選算法研究

doi: 10.11999/JEIT150209 cstr: 32379.14.JEIT150209

楊翔¹,
顧洪宇¹

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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2015-02-05
- 修回日期: 2015-07-03
- 刊出日期: 2015-11-19

A Signal Sorting Algorithm Based on Time Difference of Arrival.Histogram

Yang Xiang¹,
Gu Hong-yu¹

摘要

摘要: 到達(dá)時(shí)間差(TDOA)直方圖分析是電子支援偵察雷達(dá)信號(hào)主分選的基礎(chǔ)；相關(guān)信號(hào)分選算法的性能與TDOA直方圖脈沖重復(fù)間隔(PRI)檢測(cè)門限的設(shè)定密切相關(guān)。為揭示PRI檢測(cè)門限與TDOA直方圖參數(shù)之間的關(guān)系，解決傳統(tǒng)PRI檢測(cè)門限依靠經(jīng)驗(yàn)設(shè)定、無(wú)法靈活調(diào)整的問(wèn)題，該文從分析TDOA直方圖與脈沖序列的統(tǒng)計(jì)性質(zhì)入手，推導(dǎo)了直方圖穩(wěn)定PRI、抖動(dòng)PRI和參差PRI檢測(cè)門限的解析表達(dá)式，提出了基于TDOA直方圖PRI檢測(cè)的信號(hào)分選算法，并通過(guò)仿真驗(yàn)證了算法的有效性。
- 信號(hào)處理 /
- 信號(hào)主分選 /
- 到達(dá)時(shí)間差直方圖 /
- 脈沖重復(fù)間隔檢測(cè)門限
Abstract: The Time Difference Of Arrival (TDOA) histogram is effective for pulse train de-interleaving in radar detection. The performance of TDOA-histogram based pulse sorting algorithm depends on several parameters in the histogram, such as the Pulse Repetition Interval (PRI) detection threshold and the box length, which are set posteriorly in traditional TDOA-histogram based algorithm. In this paper, the explicit expressions of detection threshold for various PRI modes (i.e. stable, jitter, and stagger) are derived, and the relationship among these parameters are revealed. Consequently, a signal sorting algorithm is proposed, and its performance is validated by simulation in complex signal environment.
- Signal processing /
- Signal sorting /
- Time Difference Of Arrival (TDOA) histogram /
- Pulse Repetition Interval (PRI) detection threshold

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