Best-known autocorrelation peak sidelobe levels for binary codes of length 71 to 105

Nunn, C.; Coxson, Gregory E.

doi:10.1109/taes.2008.4517015

Cited by 74 publications

(38 citation statements)

References 10 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The original Barker code used in this example was s 13 In Fig. 3 we show the spectrum S(f ) corresponding to both codes, s 13 and q 27,13 . In Fig.…”

Section: Classical Optimal Filtersmentioning

confidence: 99%

“…For example, a CCF with lower sidelobe levels can be achieved using codes with comparatively larger lengths. In order to obtain higher lengths some properties of well-known codes, such as the skew symmetry [1], can be explored to reduce the search effort. An alternative choice would consist of designing a completely new code instead of making use of the property of an existing code.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Extended Optimal Filters for Adaptive-Ontransmit Radar Systems Using Binary Codes

Alejos¹,

Dawood²,

Sánchez³

2012

PIER

View full text Add to dashboard Cite

Abstract-This study introduces an extended optimal filtering technique for adaptive-on-transmit radar based on the transmission of pseudorandom noise waveforms as a method to simultaneously achieve low sidelobe level and spectral purity without degrading the main peak of the cross-correlation function. The proposed method is an extended version of the classical optimal filtering technique, resulting in longer codes with three simultaneously improved features that usually work in trade-off: 1) the cross-correlation function (CCF) sidelobe level is reduced in direct proportion to the filter length, K ; 2) the out-ofband spectral suppression is at least 40 dB for pseudorandom binary sequences (PRBS); and 3) the frequency spectrum tail presents a decay given by K −4 , offering larger out-of-band frequency suppression. The proposed technique provides skew-symmetry to the input signal and is tested on PRBS, Barker, and Golay pair of complementary codes. The proposed codes are also demonstrated to be Doppler resistant and offer better multipath capability.

show abstract

“…The original Barker code used in this example was s 13 In Fig. 3 we show the spectrum S(f ) corresponding to both codes, s 13 and q 27,13 . In Fig.…”

Section: Classical Optimal Filtersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extended Optimal Filters for Adaptive-Ontransmit Radar Systems Using Binary Codes

Alejos¹,

Dawood²,

Sánchez³

2012

PIER

View full text Add to dashboard Cite

show abstract

“…Under the generally accepted assumption that no PSL-3 binary codes exist for lengths greater than 51, they established, with near certainty, that the optimal PSL for lengths 71-82 is 4 by searching until a single PSL-4 code is discovered for each of these lengths. PSL-5 codes were produced for all lengths from 83 to 105 (Nunn & Coxson, 2008).…”

Section: History Of Scientific Endeavorsmentioning

confidence: 99%

“…So, the authors decided to publish these found records without trying to improve them more. At that time, the paper of Dr. Coxson (Nunn & Coxson, 2008) had been accepted but the authors could not gain access to their results. Later on, I saw mentioned paper and its results.…”

Section: The Authors' Effortsmentioning

confidence: 99%

A Survey on the Design of Binary Pulse Compression Codes with Low Autocorrelation

Nasrabadi¹,

Bastani²

2010

Trends in Telecommunications Technologies

View full text Add to dashboard Cite

“…The application of pulse compression coding in radars is to achieve the signal-to-noise ratio (SNR) benefits of a long pulse along with the range resolution of a short pulse [1,2]. Pulse compression is a way to achieve the resolution of the short pulses while keeping within the practical constraints of peak power limitation.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Matched and Mismatched Filters in Short Range Pulse Radars using Genetic Algorithm

Ghaferi¹,

Pishrow²

2016

IJIGSP

View full text Add to dashboard Cite

Abstract-Matched and mismatched filters are considered important parts of a radar signal processing unit. In this paper, we present an approach to optimize the matched filters and mismatched filters in short range pulse radars. For radar, the matched filter coefficients are the complex conjugates of transmitted code. We used binary phase codes as transmitted pulse. The disadvantage of binary phase codes is having high sidelobe levels in the output of correlation function. Thus, we decided to use optimization algorithms for finding binary phase codes with minimum peak sidelobe levels (MPS). After that, we succeeded in producing mismatched filter coefficients (Mis-co) for each code using floating point genetic algorithm (FGA) and we could generate and test the filter coefficients with maximum peak to sidelobe level ratio (PSR). For testing the filter, we plotted ambiguity function for each set of coefficients and tested the filter with Doppler shift.

show abstract

Best-known autocorrelation peak sidelobe levels for binary codes of length 71 to 105

Cited by 74 publications

References 10 publications

Extended Optimal Filters for Adaptive-Ontransmit Radar Systems Using Binary Codes

Extended Optimal Filters for Adaptive-Ontransmit Radar Systems Using Binary Codes

A Survey on the Design of Binary Pulse Compression Codes with Low Autocorrelation

Optimization of Matched and Mismatched Filters in Short Range Pulse Radars using Genetic Algorithm

Contact Info

Product

Resources

About