Radar Detection Device Preventing Signal Saturation via Dynamic Power Control
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Solution Overview
Problem
Conventional detection devices, such as radars, face signal saturation issues during pulse compression, which can lead to reduced resolution and increased hardware costs due to the need for wider dynamic ranges, resulting in increased circuit complexity and costs.
Innovation Solution
A detection device with a transceiver, reception signal monitoring module, and transmitting condition setting module that adjusts transmitting power based on signal intensity to prevent saturation, while performing display corrections and pulse width adjustments to maintain signal quality and reduce circuit scale.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiving dynamic range is widened to prevent reception signal saturation, then the signal saturation problem is solved, but hardware performance improvement is needed which increases cost and circuit scale
Solution Approach 1:
The invention changes the transmission power parameter dynamically based on reception signal intensity. When the reception signal intensity approaches saturation, the transmission power is reduced to prevent saturation, thereby solving the problem without requiring hardware improvements or increasing circuit scale
Solution Approach 2:
The invention implements a feedback mechanism where the reception signal intensity is monitored and used to control the transmission power. The transmission power is adjusted according to the monitored reception signal intensity, creating a closed-loop control system that prevents saturation adaptively
2Reliability
If the transmission power is reduced to prevent reception signal saturation, then signal saturation is prevented, but the echo intensity appears reduced which affects display quality
Solution Approach 1:
The invention introduces display correction as an intermediary process. The display correction unit adjusts the displayed echo intensity based on the transmission power level, compensating for the apparent reduction in echo intensity caused by lower transmission power, thereby maintaining display quality
3Measurement precision
If pulse compression is performed to improve resolution and S/N ratio, then detection performance is improved, but when reception signal is saturated appropriate pulse compression cannot be performed
Solution Approach 1:
The invention performs preliminary action by adjusting the transmission power before saturation occurs. By monitoring the reception signal intensity and reducing transmission power in advance when saturation is approaching, the system ensures that pulse compression can be performed effectively on non-saturated signals
Data Source
AI summary
This disclosure provides a device, which includes a transceiver for outputting a reception signal according to an echo intensity of a transmission signal, a reception signal monitoring module for monitoring an intensity of the reception signal based on a saturation condition, and a transmitting condition setting module for controlling a transmitting power according to the intensity of the reception signal monitored by the reception signal monitoring module.