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基于码分多址和 Kasami 码的超声阵列障碍物检测。

Ultrasonic array for obstacle detection based on CDMA with Kasami codes.

机构信息

Electronics Department, University of Alcalá de Henares, Campus Universitario, Madrid 28805, Spain.

出版信息

Sensors (Basel). 2011;11(12):11464-75. doi: 10.3390/s111211464. Epub 2011 Dec 2.

DOI:10.3390/s111211464
PMID:22247675
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3251992/
Abstract

This paper raises the design of an ultrasonic array for obstacle detection based on Phased Array (PA) techniques, which steers the acoustic beam through the environment by electronics rather than mechanical means. The transmission of every element in the array has been encoded, according to Code Division for Multiple Access (CDMA), which allows multiple beams to be transmitted simultaneously. All these features together enable a parallel scanning system which does not only improve the image rate but also achieves longer inspection distances in comparison with conventional PA techniques.

摘要

这篇论文提出了一种基于相控阵 (PA) 技术的超声阵列障碍物检测设计，该设计通过电子手段而非机械手段来引导声束穿越环境。根据码分多址 (CDMA) 对该阵列中的每个元件的传输进行了编码，这允许同时传输多个波束。所有这些特性共同实现了一种平行扫描系统，该系统不仅提高了图像速率，而且与传统的 PA 技术相比，还实现了更长的检测距离。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/4b97b01df50e/sensors-11-11464f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/68916f2dfa8c/sensors-11-11464f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/6d7b9bab8456/sensors-11-11464f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/844b46dd49e2/sensors-11-11464f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/6b2d42dbd607/sensors-11-11464f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/ed4d1069ae57/sensors-11-11464f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/814bea0fbc45/sensors-11-11464f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/074ee4035919/sensors-11-11464f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/57a8bb78375d/sensors-11-11464f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/52c187c157f5/sensors-11-11464f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/4b97b01df50e/sensors-11-11464f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/68916f2dfa8c/sensors-11-11464f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/6d7b9bab8456/sensors-11-11464f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/844b46dd49e2/sensors-11-11464f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/6b2d42dbd607/sensors-11-11464f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/ed4d1069ae57/sensors-11-11464f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/814bea0fbc45/sensors-11-11464f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/074ee4035919/sensors-11-11464f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/57a8bb78375d/sensors-11-11464f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/52c187c157f5/sensors-11-11464f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/30f6/3251992/4b97b01df50e/sensors-11-11464f10.jpg

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本文引用的文献

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High-speed ultrasound volumetric imaging system. I. Transducer design and beam steering.高速超声容积成像系统。I. 换能器设计与波束控制
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Calculation of pressure fields from arbitrarily shaped, apodized, and excited ultrasound transducers.
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A novel encoded excitation scheme in a phased array for the improving data acquisition rate.一种用于提高数据采集率的相控阵中的新型编码激励方案。
Sensors (Basel). 2013 Dec 31;14(1):549-63. doi: 10.3390/s140100549.
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