Transmitter-receiver system

US10444338B2 · kind B2 · utility

Assignee

• Acconeer AB · SE

Inventors

• Mats Ärlelid · Malmö, SE
• Denis Chouvaev · Solna, SE
• Mikael Egard · Lund, SE

Key dates

• Filing date: Mar 5, 2015
• Grant date: Oct 15, 2019
• Expiry date: Apr 10, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S7/4065
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

According to one aspect of the inventive concept there is provided a transmitter-receiver system comprising: a transmitter arranged to transmit a wavelet; a receiver arranged to receive a wavelet; a wavelet generator arranged to generate a reference wavelet; and timing circuitry arranged to receive a reference clock signal, output a first trigger signal for triggering transmission of a wavelet and output a second trigger signal for triggering generation of a reference wavelet. The timing circuitry further comprises a delay line including at least one delay element and being arranged to receive a signal at an input of the delay line and transmit a delayed signal at an output of the delay line, wherein a state of each delay element of at least a subset of said at least one delay elements is switchable between at least a first state and a second state. A delay element in said first state, i.e. switched to its first state, presents a first propagation delay. A delay element in said second state, i.e. switched to its second state, presents a second propagation delay which differs from the first propagation delay by a value which is smaller than a period of the reference clock signal. Th…