System Simulation of RF Front-End Transceiver for Frequency Modulated Continuous Wave Radar

Abstract

Frequency modulated continuous wave (FMCW) radar is a solution for range and velocity measurement of a target. This paper introduces a simulation methodology for a RF front-end transceiver of a FMCW radar system including the target model. The proposed system model can incorporate realistic design conditions such as voltage controlled oscillator phase noise. The methodology has been applied to a 2.45 GHz FMCW radar with a single antenna for transmitting and receiving waves using Advanced Design System (ADS) simulation package from Agilent. Various values of target range and velocity are employed in the simulated model to verify the operation of the FMCW radar system. The proposed simulation model has been proven to be a useful tool in the design of FMCW radar systems. The system model is used to conclude some general guidelines to help the system designer.

Design of Digital Architecture for real-time T-F Imaging with new Radar Waveform

“…Consequently, it is possible to initiate a new scan during signal processing, reducing the time gap between two scans. This results in quicker information updates and enables faster responses in critical scenarios, [25][26][27].…”

Analysis of Components and Circuit for FMCW Radar System

“…FMCW applications are also employed for marine navigation and ship identification. Some researchers employed the use of FMCW radar in geosciences field for wind speed and direction measurement of wind [8]. On the other side FMCW has great application in medical and health areas such as fall detection of elderly people and breath detection.…”

Frequency Modulated Continuous Wave Radar System at ISM Band for Short Range Indoor Positioning

“…It can be also employed for ship navigation and identification. FMCW radars can also be used target detection under the ground clutter environment, [8]. Some authors presented FMCW radars for geosciences to measure wind speed and directions.…”

“…Simple continuous wave radar devices without frequency modulation have the disadvantages [11] that they cannot determine target range because they lack the timing mark necessary to allow the system to time accurately the transmit and receive cycle and to convert this into range. Such a time reference for measuring the distances of stationary objects, but can be generated using frequency modulation of the transmitted signal.…”

“…11 show the output signal power spectra when N=192 and N=1920: the loop bandwidth is 100 kHz when N=192 and loop bandwidth decreases to 20 kHz when N increases to 1920. We can find that the signal power spectrum with smaller N has wider loop bandwidth and better in band phase noise:…”