Subelement D: Display & Control Systems - 10 Key Topics – 10 Exam Questions— Topic 35: Memory Systems
Question 8-35D1
Element 8 (RADAR)In a digitized RADAR, the 360 degree sweep is divided into how many digitized segments?
Explanation
Digitized RADAR systems convert the continuous 360-degree analog sweep into discrete digital segments to allow for processing and display. To provide sufficient angular resolution for practical applications, such as accurate target identification or weather mapping, a high number of segments is necessary.
4,096 segments provide a resolution of approximately 0.088 degrees per segment (360/4096). This level of detail enables precise tracking and clear visualization of targets. Options like 16, 64, or 255 segments would result in very coarse angular resolution, making the radar display largely impractical for detailed observation and significantly reducing its utility in navigation or meteorological applications. The number 4,096 (which is 2^12) is a common standard in digital systems for providing a practical balance between data resolution and processing requirements.
Related Questions
8-34D5 Which of the following statements about “true bearing” is correct?8-34D6 A true bearing presentation appears as follows:8-35D2 While troubleshooting a memory problem in a raster scan RADAR, you discover that the “REFRESH” cycle is not operating correctly. What type of memory circuit are you working on?8-35D3 The term DRAM stands for:8-35D4 How does the dual memory function reduce sea clutter?