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Analysis and Elaboration of an Air-Coupled Ultrasound Wideband Sensor Array

100%

Herman K., Stach L.

Acta Physica Polonica A

2013

vol. 123

issue 1

31-33

In this paper a design process of 64 sensor matrix is described. This study presents adaptation of well known sonar engineering methods of analysis in order to design air operating ultrasound beamforming system. The elaborated system is based on wideband micro electro-mechanical systems. A full digital beamformer with advanced digital signal processing block description is also included. The main goal of the system is direct of arrival of ultrasound wave estimation.

A Preliminary Analysis of Wireless Link for Bats Signals Acquisition System

81%

Herman K., Debski M., Furmankiewicz J.

Acta Physica Polonica A

2011

vol. 120

issue 4

635-638

The scope of an article that is presented below covers a preliminary analysis of a wireless link of ultrasound signal transmission in commercial radio frequency band (UHF). The radio link is used to transmit short ultrasound bat-like biosonar signals. Because of complicated structure properties and of transmitted signals the various methods of wireless transmission are shown. The hardware implementation consists of micro-electro-mechanical system microphone, microphone preamplifier and FM transmitter. At the end of the radio link a standard FM receiver is used. Since we use frequency modulation an influence of the radio link on received signal parameters is presented. The analysis of results provides us a set of information that might be used in designing of large scale wireless sensor networks for bats behavior monitoring.

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2 Acta Physica Polonica A

1 2013

1 2011

2 Herman K.

1 Debski M.

1 Furmankiewicz J.

1 Stach L.

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Analysis and Elaboration of an Air-Coupled Ultrasound Wideband Sensor Array

A Preliminary Analysis of Wireless Link for Bats Signals Acquisition System