Principles of Modern Radar - Volume 2 1891121537

2.10 Problems 85shift across the pulse. Generate the compressed response having applied the zeroDoppler matched filter. What is the loss in processing gain, the shift in the locationof the main lobe peak, and the increase in the peak sidelobe induced by the Dopplershift?7. A stepped frequency waveform is used to image a 10 m long target. To avoid rangeambiguities across the target, what is the largest f that may be applied? Using themaximum value of f needed to avoid range ambiguities, calculate the number ofpulses required to achieve an unweighted, Rayleigh range resolution of 0.1 m.8. The five-element Barker code is [111–11].a. Convert this to a four-phase sequence using the BTQ transformation.b. What is the maximum element-to-element phase change in the resulting sequence?9. The 48-element MPS code used in section 2.7.3.2 (and given in Table 4) has a peaksidelobe level of 3. What is the peak sidelobe of the corresponding quadriphasewaveform?10. Compute the optimal ISR filter of length 5 for the five-element Barker code (seeproblem 8).11. A filter is needed to suppress the two sidelobes on either side of the main lobe. Theother sidelobes are less important. Use the five-element Barker code provided inproblem 8 and assume a 5-element filter.a. Define an appropriate weighting matrix for the WLS filter. Use weight values of 1and 10 along the diagonal.b. Compute the filter and plot the range compressed response.