1.

In how many dimensions must a target be resolved from other targets in order to make measurements on it?

2.

A radar has a range resolution of 15m (bandwidth = 10 MHz), a fixed random range error of 1m, and a range bias error of 5m. If the S/N = 18 dB, what are the standard deviations of the relative and of the absolute range errors? What are the 3- ? values of these errors? What is the 3- ? absolute range-measurement error if 50 pulses are smoothed to make the measurement?

3.

A phased-array radar has a beamwidth on broadside of 2.5 degrees, a fixed random angle error of 2 mrad, a fixed scan-dependent random angle error of 1 msine, an angle bias error of 3 mrad, and a scan-dependent angle bias error of 1.5 msine. If the S/N = 12 dB, what is the 1- ? angular measurement error on broadside? What is the error at a 30-degree scan angle? What is the cross-range measurement error at a range of 150 km for these cases?

4.

An X-band radar (9.5 GHz), has a pulse duration of 1 ms and a pulse-compression ratio of 1,000. If the S/N = 15 dB, what is the error in measuring radial velocity using Doppler-frequency shift? What is the accuracy of measuring radial velocity noncoherently using two such pulses separated by 20 ms? Neglect fixed random and bias errors.

5.

A radar observes a target...