The greatest percentage of noise is generated with the electronic circuitry of the radar, particularly in the input to the receiver. A common source of this noise results from the random motion of electrons within electrical elements. The wider the bandwidth, the greater the degree of noise that will be input to the receiver. The required PRF is the reciprocal that results. 750 meters Assume a pulse compression ratio of 1.0.
Duty cycle is the ratio of average power to peak power.
A low duty cycle would indicate low average power and high peak power. The low average power is desirable from the standpoint of equipment size and the high peak power is important for maximum return signal strength. Substitute -83 dBm for receiver sensitivity and solve for S min . Convert the beam widths to radius by dividing each value by 57.3 o . 5157.4 Explain why the echo from an A-4 might be much stronger than the echo from a larger aircraft at the same range.