Design of ultralow sidelobe chaotic radar signal by modulating group delay method

Yang, Qilun; Zhang, Yunhua; Gu, Xiaowei

doi:10.1109/taes.2015.130490

Cited by 13 publications

(6 citation statements)

References 31 publications

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“…Summing up, to mitigate the sidelobes when a relatively large

is needed (order of hundred of thousand or more) the most practical way seems to act not only on the “random process” (i.e., the overall set of waveforms) but also on its “realizations” (i.e., on each waveform), paying the price of a potential reduction of LPI/LPE. The topic of Range sidelobe attenuation has been widely published in the literature for both deterministic radar signals [ 1 , 2 ] and noise radar signals [ 15 , 16 , 20 , 21 , 22 , 23 ]. A computationally simple, effective method, suited to CE noise radars, is presented in Section 3 .…”

Section: Noise Waveforms Propertiesmentioning

confidence: 99%

“…The first, and “classical”, one tries to “tailor” noise waveforms to yield low sidelobes of their “ambiguity function”, i.e., both in “range” (time) and in “Doppler” (frequency). Methods to resolve this problem are described in [ 21 , 22 ]. The second, novel solution, most effective from the application point of view, uses the “Range filters bank” (RFB) as described in [ 26 , 27 ].…”

Section: Range Sidelobes Suppression For the Autocorrelation Functmentioning

confidence: 99%

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Introduction to Noise Radar and Its Waveforms

Palo¹,

Galati

Pavan

et al. 2020

Sensors

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In the system-level design for both conventional radars and noise radars, a fundamental element is the use of waveforms suited to the particular application. In the military arena, low probability of intercept (LPI) and of exploitation (LPE) by the enemy are required, while in the civil context, the spectrum occupancy is a more and more important requirement, because of the growing request by non-radar applications; hence, a plurality of nearby radars may be obliged to transmit in the same band. All these requirements are satisfied by noise radar technology. After an overview of the main noise radar features and design problems, this paper summarizes recent developments in “tailoring” pseudo-random sequences plus a novel tailoring method aiming for an increase of detection performance whilst enabling to produce a (virtually) unlimited number of noise-like waveforms usable in different applications.

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“…Summing up, to mitigate the sidelobes when a relatively large

Section: Noise Waveforms Propertiesmentioning

confidence: 99%

Section: Range Sidelobes Suppression For the Autocorrelation Functmentioning

confidence: 99%

Introduction to Noise Radar and Its Waveforms

Palo¹,

Galati

Pavan

et al. 2020

Sensors

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“…Setting up new radar types requires comprehensive consideration of various problems, especially the technical means and application methods of competitors. New mode of radar application should be constructed to obtain more information resources in the process of new radar design and used to promote information awareness [57,58]. Other functions are constantly strengthened and developed to form a more complete database and analytical response methods.…”

Section: Rs Design Mode Characteristic Performancementioning

confidence: 99%

Processing Technology Based on Radar Signal Design and Classification

Zhang

Zhan

2020

International Journal of Aerospace Engineering

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It is well known that the application of radar is becoming more and more popular with the development of the signal technology progress. This paper lists the current radar signal research, the technical progress achieved, and the existing limitations. According to radar signal respective characteristics, the design and classification of the radar signal are introduced to reflect signal’s differences and advantages. The multidisciplinary processing technology of the radar signal is classified and compared in details referring to adaptive radar signal process, pulse signal management, digital filtering signal mode, and Doppler method. The transmission process of radar signal is summarized, including the transmission steps of radar signal, the factors affecting radar signal transmission, and radar information screening. The design method of radar signal and the corresponding signal characteristics are compared in terms of performance improvement. Radar signal classification method and related influencing factors are also contrasted and narrated. Radar signal processing technology is described in detail including multidisciplinary technology synthesis. Adaptive radar signal process, pulse compression management, and digital filtering Doppler method are very effective technical means, which has its own unique advantages. At last, the future research trends and challenges of technologies of the radar signals are proposed. The conclusions obtained are beneficial to promote the further promotion applications both in theory and practice. The study work of this paper will be useful for choosing more reasonable radar signal processing technology methods.

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“…The range profile of the target can be obtained by stepping through different delay values and measuring the peak value of cross‐correlation, obviously continuous delay is hard to realise and thus the performance is quite limited [5–7]. Benefited from the rapid advances in RF and digital signal processing technologies, pseudo noise signal or random signal generated from a deterministic system, such as chaotic signal [15, 19, 20], has become more and more popular due to its advantage over the traditional white noise signals: not only easier to generate and control, but also less expensive.…”

Section: Introductionmentioning

confidence: 99%