Multi-target real-time telemetering method and multi-target real-time telemetering system for micro-distortion

• Main Authors: CAI YINGZHUO, WANG TAO, ZHANG XINZHENG, ZHANG HONG, XIE XIAOJIAO, XIE ZHIMAO, ZHANG PAN, WANG KUN, ZONG JINGJING, LIAO YONG, YANG LISHENG
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2014
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses a multi-target real-time telemetering method and a multi-target real-time telemetering system for micro-distortion. The system consists of a micro-distortion telemetering radio frequency tag reader and a plurality of observation point radio frequency tags, wherein the micro-distortion telemetering radio frequency tag reader is arranged at a fixed point, and the observation point radio frequency tags are arranged on a measured object; a radio-frequency carrier signal is transmitted by the tag reader, and after the signal is received by each tag, the signal is modulated by sine wave signals different in frequency, and then, the signal is transmitted back to the tag reader; mixed echo signals of the multiple tags are received by the tag reader; down conversion is performed on the mixed echo signals to a base band by using a quadrature down conversion circuit; then, identification tags are separated by a tag separation circuit, i.e. a plurality of extreme narrow band band-pass filters, and