Radar Reception Channel Phase Compensation Under Temperature Drift
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Solution Overview
Problem
Vehicle radar systems face performance deterioration due to temperature-induced phase changes in reception channels, affecting accurate object detection.
Innovation Solution
A radar control device and method that compensates for relative phase changes between reception channels using temperature sensing information to maintain phase stability at a preset reference temperature, enhancing detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radar uses array antenna with multiple reception channels for improved detection performance, then detection accuracy is improved, but phase difference between channels varies with temperature causing performance deterioration
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting phase compensation values based on temperature variations. The controller modifies the phase difference compensation parameters in real-time according to the detected temperature, transforming the system from a fixed-phase configuration to an adaptive one that maintains detection accuracy across different thermal conditions.
Solution Approach 2:
The patent implements feedback by using temperature sensors to continuously monitor the operational temperature of the radar system and feeding this information back to the controller. The controller then uses this feedback to adjust phase compensation parameters, creating a closed-loop system that automatically corrects temperature-induced phase variations.
2Adaptability or versatility
If radar operates in harsh environmental conditions with temperature variations, then adaptability is improved, but phase change in reception channels deteriorates detection performance
Solution Approach 1:
The patent applies dynamics by making the phase compensation parameters variable rather than fixed. The system dynamically adjusts compensation values based on real-time temperature measurements, allowing the radar to adapt its phase characteristics to match the actual operating conditions and maintain detection accuracy across a wide temperature range.
Solution Approach 2:
The patent changes physical parameters (phase compensation values) in response to environmental conditions. By modifying the phase difference parameters based on temperature sensor readings, the system adapts to harsh environmental conditions while preserving detection precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution prevents performance deterioration and enhances target detection accuracy by removing the effect of temperature on radar signal measurement.
Implementation Method 1
receiving temperature sensing information from a temperature sensor
Implementation Method 2
The transmitter/receiver of the radar may transmit a signal through the transmission antenna and receive the transmission signal reflected by an object, through the reception antenna
Implementation Method 3
receiving a reception signal of the transmission signal, reflected by a target, through each reception channel
Data Source
AI summary
The disclosure relates to a radar control device and method. Specifically, a radar control device according to the disclosure comprises a transceiver transmitting a transmission signal through each transmission channel including a first transmission channel and a second transmission channel, receiving a reception signal of the transmission signal, reflected by a target, through each reception channel including a first reception channel and a second reception channel, and receiving temperature sensing information from a temperature sensor and a controller controlling to determine relative phase compensation information resultant from compensating a relative phase between the first reception channel and the second reception channel into a relative phase at a preset reference temperature, based on the reception signal and the temperature sensing information.