Echo Image Generating Device for Ship and Bird Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current radar systems struggle to effectively display both short-distance and long-distance target objects, such as ships and birds, due to sensitivity settings optimized for one range causing noise and obscuring important information in the other range.
Innovation Solution
An echo image generating device that sets different sensitivity settings for short-distance and long-distance ranges, allowing for reduced noise in close proximity while enhancing visibility of weak echoes like birds at greater distances, by adjusting gain, video slope, and color palette accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the gain is adjusted to maximum sensitivity to detect weak echoes like birds, then the detection capability for long-distance targets is improved, but noise becomes noticeable and the entire echo image becomes difficult to observe
Solution Approach 1:
The echo image display range is divided into multiple distance ranges (first range and second range). Different sensitivity settings are applied to different ranges: higher sensitivity for long-distance range to detect weak echoes like birds, and lower sensitivity for short-distance range to maintain clear observation of ships and reduce noise visibility.
2Measurement precision
If the sensitivity of the entire echo image is raised to detect weak echoes, then the detection capability for small targets is improved, but the image of short-distance range becomes totally saturated
Solution Approach 1:
Different sensitivity settings are applied to different spatial regions of the echo image. The first range (short-distance) uses lower sensitivity to prevent saturation and maintain clear image quality for ship observation, while the second range (long-distance) uses higher sensitivity to enable detection of weak echoes from small targets like birds.
3Manufacturing precision
If the gain is adjusted mainly according to the echoes of the ships, then the clarity of ship images is improved, but the bird echoes which have weaker signal level are often vanished as noise
Solution Approach 1:
The display range is segmented into short-distance range for ship observation and long-distance range for bird detection. By applying different sensitivity settings to these segments, ships in the short-distance range maintain clear visibility while bird echoes in the long-distance range are enhanced and can be detected above the noise level.
Data Source
AI summary
An echo image generating device may be provided, which includes a signal acquiring module, a sensitivity setting module, and a screen generating module. The signal acquiring module may acquire an echo signal from a target object around a ship. The sensitivity setting module may perform a first sensitivity setting for the echo signal in a first range, and a second sensitivity setting for the echo signal in a second range without including the first range, the second sensitivity setting being different from the first sensitivity setting. The screen generating module may generate an echo image of the first range based on the first sensitivity setting, and generate an echo image of the second range based on the second sensitivity setting.