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Suppose the ambiguity function of some waveform x(t) of duration ζ = 1 millisecond is given by
(NOTE: this is not a possible AF because it is not time-limited to ±ζ seconds duration in the delay coordinate, but it will do for this problem.) Suppose there are two targets in our line of sight, one at R = 10 km and one at R = 10.1 km. Also assume that both have the same RCS, and ignore the effect of the small range difference on the received echo power. The radar and the first target are stationary. The second target is traveling towards the radar at 100 m/s. The radar is operating at 1 GHz. What is the Doppler shift of the echo from the second target, in Hz? If the matched filter output is sampled at a time delay corresponding to the range to the first target (= 2*(10 km)/c = 66.67 μs), the sample will contain contributions from both the first and second targets. Use A(t,FD) to determine the amplitude of the contribution from the second target to the sample timed to correspond to the first target. Express your answer in dB.
1. Design four (4) different 5 volt DC power supplies to operate from 230 volts AC. The four power supplies are to have the same full wave rectifier with capacitive filte
Q. An 8 - pole dc generator has 500 armature conductors and has a useful flux per pole of 0.065 web. What will be the emf generated if it is lap connected and runs at 1000 r.p.m.
Describe the effect of following parameters. Abrasive grit size. Amplitude and frequency of vibration.
Q. 10-kVA, 4800:240-V, 60-Hz, single-phase transformer has an equivalent series impedance of 120 + j300 referred to the primary high- voltage side. The exciting current of the tr
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There is a limitation on the size of data. Most Microprocessor does not maintain floating-point operations.
Faraday conducted a series of experiments on coils in a magnetic field. He found that if the magnetic flux density threading a coil were changed, a voltage was induced in the co
(a) Carry out a topological analysis for the circuit shown in Figure 1. (i) Construct a graph for the circuit (ii) State the different trees you can choose. (b) Us
Electromagnetic torque The torque is given by the force on the armature winding multiplied by its radius. Force on a conductor in magnetic field B is: F=B.I.L so, T=B
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