Emulating of Polyphase Coded Radar Signals Using Software Defined Radio

Perdoch, Jozef; Matousek, Zdenek; Ochodnicky, Jan

doi:10.23919/kit.2019.8883459

Cited by 1 publication

(3 citation statements)

References 7 publications

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“…The proposed intrapulse modulated radar signals are needed to state that the used radar transmitter must meet the minimal value of bandwidth B TXmin condition defined by Perdoch J et al. [25].

{B}_{\text{TX}\mathrm{min}}=\frac{6.75}{P{W}_{S}}+\left({f}_{\mathrm{max}}-{f}_{\mathrm{min}}\right),

where f min is minimal value of frequency of generated radar signal and f max is maximal value of frequency of generated radar signal.…”

Section: Intrapulse Modulation Of Radar Signalsmentioning

confidence: 99%

“…When generating intrapulse modulated radar signals, it is necessary to use such hardware elements and set such hardware parameters so that it is possible to ensure the minimal value of pulse quality factor Γ of every radar signal subpulse at the level of 0.9 [25]. It means, that the maximal value of radar subpulse distortion will be less than 10%.…”

mentioning

confidence: 99%

“…It means, that the maximal value of radar subpulse distortion will be less than 10%. The proposed intrapulse modulated radar signals are needed to state that the used radar transmitter must meet the minimal value of bandwidth B TXmin condition defined by Perdoch J et al [25].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Radar signal waveform based on Costas and Walsh‐Hadamard codes as electronic counter‐countermeasure

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et al. 2023

IET Radar Sonar & Navi

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Belligerent sides of current military conflicts are first and foremost counting on intelligence, air supremacy, and electromagnetic spectrum dominance. Actual concepts of conducting military operations can be characterised by the massive employment of air defence systems, radars, and electronic warfare systems. An approach is aimed to strengthen air‐defence potential by improving the resilience of pulse radar against electronic warfare threats, such as an electronic attack. To cope with the above‐mentioned situation, a radar intrapulse modulation was designed, where a combination of Costas codes and Walsh‐Hadamard codes is applied. Using a particular waveform together with the proposed model for radar signal processing results in increased resilience against an electronic attack, especially against repeater jamming methods. Furthermore, it is also possible to process radar echoes at low levels of Signal‐to‐Noise Ratio (SNR), which enhances radar electronic counter–countermeasure capability. The main scientific contribution of the paper is in the unique design of the Pulse Compression Filter for Combined Intrapulse Modulation (PCF‐CIM) and in its modelling. Based on the statistical evaluation of results, using the proposed radar waveform together with PCF‐CIM, it is possible to detect radar signals with combined intrapulse modulation in the case of SNR ≥ −14 dB with TPR ≥0.9999 and FPR ≤10−6, where SNR stands for Signal‐to‐Noise Ratio, TPR stands for True Positive Rate, and FPR stands for False Positive Rate.

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“…The proposed intrapulse modulated radar signals are needed to state that the used radar transmitter must meet the minimal value of bandwidth B TXmin condition defined by Perdoch J et al. [25].