We discuss range and Doppler processing for FMCW radar using only a single pulse or frequency sweep. The first step is correlation processing, for which the range and Doppler resolution are limited by the ambiguity function. We show that this resolution can be optimized with an additional inverse filtering step. The method is demonstrated for sinusoidal FMCW radar measurements. Several regulari...

Frequency modulated continuous wave (FMCW) radars have been widely used for measuring target range and speed. In this paper, we present a mathematical model that quantifies the system-level performance of FMCW radar systems. In FMCW radar, the target range is measured through measuring the beat frequency between the transmitted and received signal, usually by using Fast Fourier Transform (FFT)....

Short-range noncontact sensors are capable of remotely detecting the precise movements of the subjects or wirelessly estimating the distance from the sensor to the subject. They find wide applications in our day lives such as noncontact vital sign detection of heart beat and respiration, sleep monitoring, occupancy sensing, and gesture sensing. In recent years, short-range noncontact sensors ar...

This paper presents a Ku-band (14–16 GHz) CMOS frequency-modulated continuous-wave (FMCW) radar transceiver developed to measure dry-snow depth for water management purposes and to aid in retrieval of snow water equivalent. An on-chip direct digital frequency synthesizer and digital-toanalog converter digitally generates a chirping waveform which then drives a ring oscillator-based Ku-Band phas...

The performance of automotive controller area network (CAN) for safety driving applications based on the radar sensors is tightly related to the target vehicle detection. The presented paper deals with introduction of appropriate signal detection and signal processing techniques for closing vehicle detection (CVD) based on FMCW radar.

The paper describes the UMRR-S sensor, which has been developed for automotive applications in a co-operation between Volkswagen AG and smart microwave sensors GmbH as a derivative of the UMRR platform. The sensor is able to operate in the 24GHz ISM band and is applicable for Advanced Driver Assistance System functions. It can run both in UWB Pulseand in a number of Narrowband FMCW Modes. It ca...

This paper defines the issues required for the development of successful visualisation sensors for use in open cut and underground mines. It examines the mine environment and considers both the reflectivity of the rock and attenuation effects of dust and water droplets. Millimetre wave technology, as an alternative to the more commonly used laser and sonar implementations, is selected due to it...

In this paper the benefits of using highly integrated millimeter-wave FMCW radar systems for industrial and security imaging applications are discussed. A 240 GHz wideband transceiver MMIC with on-chip antennas is presented and first non destructive testing measurements of packed hazelnut chocolate are shown. The radar system covers the frequency band from 204GHz to 265GHz.

To overcome blind spots of an ordinary weather radar which scans horizontally at a high altitude, a weather radar which operates vertically, so called an atmospheric profiler, is needed. In this paper, a K-band radar for observing rainfall vertically is introduced, and measurement results of rainfall are shown and discussed. For better performance of the atmospheric profiler, the radar which ha...

With 28.000 road fatalities in 2012 in Europe, car manufacturers, automotive electronics suppliers, and universities are working to develop new electronic systems for accident prevention and collision mitigation. In the near future, vehicle-tovehicle and vehicle-to-infrastructure networks based on dedicated short-range communication (DSRC) technology will warn drivers when dangerous conditions ...