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IF amplifier module for high-sweep speed LFMCW radar
Abstract
A new IF module for linear frequency modulated continuous wave
(LFMCW) radar is proposed in this paper, which is implemented with a
low-cost and simple architecture and can be used for high sweep
frequency. The scheme can improve system SNR and support implementation
of a time-division switching antenna array (TDSAA). The performance of
the scheme is analyzed and the experimental results are described in
detail
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This paper presents a summary of requirements and status of
transceiver components as applicable to collision warning systems
operating at 76 GHz. The paper will include a brief description of
applicable radar architectures that are possible solutions to the
collision warning scenarios being developed today. The individual
circuit components required in each architecture will be described along
with a listing of key performance parameters and the expected
specifications for these parameters. The paper will also describe
development status of components as known today, identifying what is in
use and what is under development for future systems. Target costs,
volumes and areas of concern relative to meeting performance and cost
targets will be discussed
A collision avoidance system for automobiles to be used in
freeways and similarly structured traffic environments is under study.
The authors report on concepts, the state of realization and on first
experimental results. A two-dimensional imaging problem has to be solved
because the mere detection of objects in front of a vehicle is not
sufficient; potential paths of collision can only be recognized by
assigning objects to their surroundings. While digital wavefront
reconstruction was used for angular discrimination, a high-resolution
pseudonoise code radar applying a binary phase modulation to a
continuous carrier has been implemented for longitudinal resolution. The
laboratory evaluation has confirmed the specifications regarding
essential system parameters such as radial resolution and sensitivity
The Develop of mm-wave FMCW Transceiver Modules
- H Zenqi
- H Minmin
Sensitivity Frequency Control Technology of FMCW Radar
- L He
- J Ge
Switch Antenna Arrays with Single Receiving Channel for FMCW Radar
- Y Li
- Z Feng