| Автор | Z X Ding |
| Автор | P A Payne |
| Дата выпуска | 1990-02-01 |
| dc.description | Many measurements involving ultrasonic pulse echo techniques are limited by poor signal-to-noise ratios. It is well known that random or pseudorandom codes in conjunction with cross correlation can enhance signal-to-noise ratio and it has been shown that a form of pseudo-random sequence known as a Golay code enables the signal-to-noise ratio improvement to be obtained whilst requiring only two sequences of the code to overcome problems of self noise. A significant parameter associated with a system employing this technique is the amplitude of the coded signal applied to the transducer. The authors describe the development and application of a system having a transmitter capable of delivering peak-to-peak signals of 100 V. Measurements show that this instrument provides considerable signal-to-noise improvements when compared with conventional equipment. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | A new Golay code system for ultrasonic pulse echo measurements |
| Тип | paper |
| DOI | 10.1088/0957-0233/1/2/010 |
| Electronic ISSN | 1361-6501 |
| Print ISSN | 0957-0233 |
| Журнал | Measurement Science and Technology |
| Том | 1 |
| Первая страница | 158 |
| Последняя страница | 165 |
| Аффилиация | Z X Ding; Dept. of Instrum. & Anal. Sci., Univ. of Manchester Inst. of Sci. & Technol., UK |
| Аффилиация | P A Payne; Dept. of Instrum. & Anal. Sci., Univ. of Manchester Inst. of Sci. & Technol., UK |
| Выпуск | 2 |
