A Method of Signal Sorting for Radar Signal of Pulse Repetition Interval Complex Modulated

2014 ◽  
Vol 35 (10) ◽  
pp. 2493-2497 ◽  
Author(s):  
Ying-da Li ◽  
Li-zhi Xiao
Keyword(s):  
Pulse Repetition ◽  
Radar Signal ◽  
Repetition Interval

A Novel Method for Deinterleaving of Radar Signals Using Blind Source Separation

2013 ◽  
Vol 411-414 ◽  
pp. 1053-1057
Author(s):  
Wei Lu ◽  
Ming Ma
Keyword(s):  
Blind Source Separation ◽  
Computer Simulations ◽  
Pulse Train ◽  
Source Separation ◽  
Important Task ◽  
Pulse Repetition ◽  
Radar Signal ◽  
Novel Method ◽  
Radar Signals ◽  
Repetition Interval

In the modern wars under the condition of informationalization, radar signals are generally characterized by repetitive patterns in time, so it is one important task of Radar Warning Receiver (RWR) to estimate the Pulse Repetition Interval (PRI) of all radar signals by intercepting and identifying the mixed radar signals. Because each transmitted radar signal are arbitrary in general. From the view of statistic, the transmitted radar pulse train from different radars is mutual independent. So the constituted model of RWR and radar transmitters accord with blind source separation which can separate mixed signals into pure signals. A deinterleaving method using blind source separation for estimating the PRI of each radar signals is proposed. The implementation architecture of the proposed method is given. Finally, computer simulations show the proposed method can gain good performance for the estimation of PRI of radar signals.

scholarly journals Specific emitter identification based on graphical representation of the distribution of radar signal parameters

2015 ◽  
Vol 63 (2) ◽  
pp. 391-396 ◽  
Author(s):  
J. Dudczyk ◽  
A. Kawalec
Keyword(s):  
Graphical Representation ◽  
Electromagnetic Emission ◽  
Pulse Repetition ◽  
Radar Signal ◽  
Correct Identification ◽  
Angle Of Arrival ◽  
Doppler Shifts ◽  
Basic Parameters ◽  
Specific Emitter Identification ◽  
Repetition Interval

Abstract The article presents some possibilities of same type radar copies identification with the use of graphical representation. The procedure described by the authors is based on transformation and analysis of basic parameters distribution which are measured by the radar signal especially Pulse Repetition Interval. A radar intercept receiver passively collects incoming pulse samples from a number of unknown emitters. Information such as Pulse Repetition Interval, Angle of Arrival, Pulse Width, Radio Frequency and Doppler shifts are not usable. The most important objectives are to determine the number of emitters present and classify incoming pulses according to emitters. To classify radar emitters and precisely identification the copy of the same type of an emitter source in surrounding environment, we need to explore the detailed structure i.e. intra-pulse information, unintentional radiated electromagnetic emission and fractal features of a radar signal. An emitter has its own signal structure. This part of radar signal analysis is called Specific Emitter Identification. Utilization of some specific properties of electronic devices can cause heightening probability of a correct identification

scholarly journals Perancangan Prototipe Transmitter Beacon Black Box Locator Acoustic 37.5 kHz Pingers

2018 ◽  
Vol 4 (2) ◽  
pp. 170
Author(s):  
RUSTAMAJI RUSTAMAJI ◽  
KANIA SAWITRI ◽  
RUDI GUNAWAN
Keyword(s):  
Pulse Width ◽  
Black Box ◽  
Pulse Repetition ◽  
Acoustic Vibrations ◽  
Colpitts Oscillator ◽  
Amplifier Circuit ◽  
Oscillator Circuit ◽  
Signal Output ◽  
Transmitted Signal ◽  
Repetition Interval

ABSTRAKPingers transmitter berfungsi untuk memancarkan sinyal atau getaran pulsa akustik pada black box. Frekuensi sinyal yang dipancarkan sebesar 37,5 kHz yang dimodulasikan oleh pulsa dengan durasi 10 ms setiap interval 1 second. Modulasi yang digunakan adalah modulasi on off keying. Dalam penelitian ini dibuat perancangan pingers transmitter yang tersusun atas rangkaian osilator, timer, inverter, switch dan rangkaian amplifier. Frekuensi 37,5 kHz tersebut dibangkitkan oleh rangkaian osilator colpitts, sedangkan lebar pulsa dengan durasi 10 ms dan pengulangan pulsa setiap interval 1 second dibangkitkan oleh rangkaian timer. Berdasarkan perancangan yang telah dibuat, output sinyal yang dihasilkan oleh prototipe pingers transmitter tersebut sebesar 37,69 kHz dengan lebar pulsa 9,8 ms setiap interval 1 second.Kata kunci: Black box, pingers transmitter, on off keying. ABSTRACTPingers transmitter is used to emits a signal or pulse of acoustic vibrations  in black box. The frequency of the transmitted signal is 37.5 kHz which is modulated by pulses with a duration of 10 ms every interval 1 second. The modulation that used this research is on off keying modulation. In this research, made the design of pingers transmitter which arrange of the oscillator circuit,timer, inverter, switch, and amplifier circuit. The 37.5 kHz frequency is generated by the colpitts oscillator circuit, while the pulse width with a duration of 10 ms,and each pulse repetition interval of 1 second generated by timer circuit. Based on the design that have made, signal output from the pingers transmitter prototype is 37.69 kHz, with the pulse width 9.8 ms every 1 second interval.Keywords: Black box, pingers transmitter, on off keying.

scholarly journals Improved Algorithm of Radar Pulse Repetition Interval Deinterleaving Based on Pulse Correlation

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 30126-30134 ◽  
Author(s):  
Zhipeng Ge ◽  
Xian Sun ◽  
Wenjuan Ren ◽  
Wenbin Chen ◽  
Guangluan Xu
Keyword(s):  
Pulse Repetition ◽  
Repetition Interval ◽  
Improved Algorithm
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