A modified weighted high-resolution adaptive range estimation method for active sonar
능동 소나에 대한 수정된 가중 고해상도 적응 범위 추정 방법
Un método de estimación de rango adaptativo de alta resolución ponderado modificado para sonar activo
Une méthode d'estimation de portée adaptative haute résolution pondérée modifiée pour sonar actif
Модифицированный взвешенный метод адаптивной оценки дальности с высоким разрешением для активного гидролокатора
ZHANG Shuhao 张舒皓 ¹ ², MA Xiaochuan 马晓川 ¹ ², WANG Lei 王磊 ¹, SONG Qiyan 宋其岩 ¹ ², ZHAN Fei 詹飞 ¹
¹ Institute of Acoustics, Chinese Academy of Sciences Beijing 100190
中国 北京 中国科学院声学研究所
² University of Chinese Academy of Sciences, Beijing 100049
中国 北京 中国科学院大学
Chinese Journal of Acoustics, 2 October 2021 (revised proof)

This paper proposes a high-resolution adaptive range-dimensional beamforming approach to improve the performance of the range estimation of active sonars.In our approach,three types of weight matrices are proposed.

The first approach utilizes a diagonal matrix,where the first element on the main diagonal is the residual sum of squares,while all the rest is set to zero.The second approach uses an identity matrix.In the third approach,we use a diagonal matrix,where the main diagonal is filled with the residual sum of squares used in the first one.

Furthermore,we also propose a high-order linear prediction model with different references of sub-bands by using the three weight matrices to construct the output of the power spectrum.One advantage of our proposed approach avoids the low-order linear prediction used by the range-dimensional beamforming method.

We compare our approach with states-of-theart range-dimensional beamforming methods.The experimental results show that our proposed approach achieves a higher range resolution.
Chinese Journal of Acoustics_1
Chinese Journal of Acoustics_2
Chinese Journal of Acoustics_3
Reviews and Discussions
Ultrafast dynamics of femtosecond laser-induced high spatial frequency periodic structures on silicon surfaces
Optical scanning endoscope via a single multimode optical fiber
Self-polarized RGB device realized by semipolar micro-LEDs and perovskite-in-polymer films for backlight applications
A highly sensitive LITES sensor based on a multi-pass cell with dense spot pattern and a novel quartz tuning fork with low frequency
Multi-wavelength nanowire micro-LEDs for future high speed optical communication
Luminescence regulation of Sb3+ in 0D hybrid metal halides by hydrogen bond network for optical anti-counterfeiting
Breaking the optical efficiency limit of virtual reality with a nonreciprocal polarization rotator
Simultaneously realizing thermal and electromagnetic cloaking by multi-physical null medium
Generation of lossy mode resonances (LMR) using perovskite nanofilms
Acousto-optic scanning multi-photon lithography with high printing rate
Tailoring electron vortex beams with customizable intensity patterns by electron diffraction holography
Miniature tunable Airy beam optical meta-device

Previous Article                                Next Article
Copyright © Hot Paper