Radar Apparatus Iterative Transmission Level Control
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Solution Overview
Problem
Conventional radar apparatuses require frequent communication with an external PC to adjust control parameters, leading to prolonged time in controlling transmission levels.
Innovation Solution
A radar apparatus with an initial measurement means, target setting means, and control means that conducts a single initial communication to acquire measurement results, using a delay device to measure reception levels and iteratively update control parameters until the target reception level is achieved, reducing the need for repeated PC communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the radar apparatus communicates with the external PC every time it changes a control parameter, then the transmission level can be adjusted, but the time required for control increases significantly
Solution Approach 1:
The system performs preliminary measurement of the radar wave's transmission level and reception level before control adjustments are made. By acquiring these baseline measurements in advance and storing them in memory, the radar apparatus can calculate appropriate control parameter changes without needing to communicate with the external PC for each adjustment, thereby reducing control time while maintaining ease of operation.
2Measurement precision
If the radar apparatus measures transmission level using an external PC and power meter, then measurement accuracy is achieved, but communication frequency increases
Solution Approach 1:
The radar apparatus performs self-measurement of its own transmission level and reception level using integrated measurement devices, eliminating the need for external PC intervention for each measurement. The apparatus autonomously acquires measurement data, processes it through its control unit, and determines appropriate control parameter adjustments, thereby reducing communication frequency while maintaining measurement precision.
Solution Approach 2:
The system performs preliminary measurement of the radar wave's transmission level and reception level before control adjustments are made. By acquiring these baseline measurements in advance and storing them in memory, the radar apparatus can calculate appropriate control parameter changes without needing to communicate with the external PC for each adjustment, thereby reducing control time while maintaining ease of operation.
3Manufacturing precision
If the radar apparatus uses a delay device to measure reception level, then control precision is improved, but the system complexity increases
Solution Approach 1:
The delay device serves as an intermediary element that enables the radar apparatus to measure its own reception level by introducing a controlled time delay in the signal path. This intermediary allows the transmitted signal to return through the receiving antenna, creating a measurable reception level that can be used for precise control adjustments without requiring complex external measurement systems.
Data Source
AI summary
A radar apparatus transmits a radar wave, with a control parameter being set to a desired value, and acquires an initial transmission level from outside the radar apparatus, the initial transmission level being a result of measurement of a transmission level of the radar wave. At the same time, the radar apparatus receives a delayed wave of the radar wave from outside the radar apparatus, and acquires an initial reception level which is a result of measurement of a reception level of the delayed wave. The radar apparatus then sets a target reception level according to a preset target transmission level, and the initial transmission level and the initial reception level acquired. The radar apparatus then repeats update of the control parameter and measurement of the reception level until the reception level coincides with the target reception level.