How do you eliminate stationary objects such...

Question 1 / 203GyCgcWvFY42cD4pSDZL

Question 1 of 203GyCgcWvFY42cD4pSDZL

How do you eliminate stationary objects such as trees, buildings, bridges, etc., from the PPI presentation?

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Question 1 of 20

3GyCgcWvFY42cD4pSDZL

How do you eliminate stationary objects such as trees, buildings, bridges, etc., from the PPI presentation?

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🔍 Key Concepts

• PPI (Plan Position Indicator) radar displays show both moving and fixed targets • Discriminators / second detectors can be used to filter out certain types of echoes • Difference between returns from stationary objects (clutter) and moving targets

💭 Think About

• Which component or method in radar systems is specifically used to separate moving targets from fixed background echoes? • Think about what you would adjust or add in the receiver chain to make the radar ignore echoes that do not change in range or bearing over time. • Which options are more about frequency tuning and which are about comparing or filtering signals to detect motion?

✅ Before You Answer

• Identify which choice refers to using a special circuit to compare consecutive echoes and cancel those that remain constant. • Eliminate any options that only involve general calibration (tuning) rather than target discrimination. • Confirm which option implies using the discriminator in a way that distinguishes moving from non-moving returns.

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Question 1 of 20

How do you eliminate stationary objects such as trees, buildings, bridges, etc., from the PPI presentation?

Remove the discriminator from the unit.

Use a discriminator as a second detector .

Calibrate the IF circuit.

Calibrate the local oscillator.

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Question 1 / 203GyCgcWvFY42cD4pSDZL

Question 1 of 203GyCgcWvFY42cD4pSDZL

How do you eliminate stationary objects such as trees, buildings, bridges, etc., from the PPI presentation?

Back

Question 1 of 20

3GyCgcWvFY42cD4pSDZL

How do you eliminate stationary objects such as trees, buildings, bridges, etc., from the PPI presentation?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed