In this dissertation , we systematically study the pulse - position - modulated pulse - sequence ( ppm - ps ) radar signal theory and its applications to radar / fuze systems 本文系統(tǒng)地研究了脈位調(diào)制脈沖串雷達(dá)信號(hào)理論及其在雷達(dá)引信中的應(yīng)用。
In the information environment of radar there are some signals such as regular and binary phase modulated pulse signal and linear frequency modulated signal are used widely 在雷達(dá)信號(hào)環(huán)境中,最常見的信號(hào)包括常規(guī)脈沖調(diào)制信號(hào)、脈內(nèi)二相編碼信號(hào)以及線性調(diào)頻信號(hào)。對(duì)這些信號(hào)的載頻測(cè)量在電子戰(zhàn)中具有重要意義。
This paper presents an integrated comparison of object - detecting techniques , the techniques that base on millimetre wave frequency modulated pulse - doppler radar is chosen on the basis of the idiographic demand of the recws 通過對(duì)車載目標(biāo)探測(cè)技術(shù)的綜合比較,結(jié)合本報(bào)警系統(tǒng)的具體要求,選用了車載毫米波調(diào)頻多普勒雷達(dá)目標(biāo)探測(cè)技術(shù)。
A new pattern position sensitive detector is introduced , so the accelerometer has many advantages including high sensitivity , high resolution and quick response speed . a binary width - modulated pulse rebalance loop is applied in the accelerometer 該加速度計(jì)引入了新型位置敏感探測(cè)器psd ,使其具有高的靈敏度、分辨率和響應(yīng)速度;同時(shí)采取了二元調(diào)寬脈沖加矩方式的再平衡回路。
A high - resolution method for frequency measurement is strongly introduced in the paper , which is aim at detecting the frequency of regular and binary phase coding modulated pulse signals with high frequency precision . considering the popularity of linear frequency modulated ( lfm ) signal in electronic systems , this paper then referred a radon - stft arithmetic to calculate the carry frequency of lfm signal . both of these methods referred above are implemented in the signal if detection software 針對(duì)常規(guī)脈沖調(diào)制信號(hào)和脈內(nèi)二相編碼調(diào)制信號(hào),本文提出一種高精度的數(shù)字化測(cè)頻方法,以提高信號(hào)載頻測(cè)量精度;線性調(diào)頻信號(hào)作為一種典型的非平穩(wěn)信號(hào)在各種領(lǐng)域應(yīng)用十分廣泛,但對(duì)其載頻的數(shù)字化測(cè)量比較困難,本文利用圖像處理中的radon變換與信號(hào)時(shí)頻分析中的線性變換相結(jié)合的算法來完成對(duì)其載頻的測(cè)量。