One problem was that the returns from closer objects were much stronger than more distant objects, due to the radar equation.
2.
As each leg of the journey is subject to the inverse square law, the resulting radar equation contains a fourth-power dependence.
3.
Additional filtering and pulse integration modifies the radar equation slightly for pulse-Doppler radar performance, which can be used to increase detection range and reduce transmit power.
4.
This is a complex statement that can be understood by examining the monostatic ( radar transmitter and receiver co-located ) radar equation one term at a time:
5.
According to the radar equation this makes the system eight times as sensitive, and the system displayed its ability to track enemy fighters at ranges as great as.
6.
In this light, RCS can be viewed simply as a correction factor that makes the radar equation " work out right " for the experimentally observed ratio of P _ r / P _ t.
7.
:: : : As an example, I'm looking at the radar equation and wondering how small a returned signal can be before you start " detecting " every bit of background radiation.
8.
The clutter return from the volume is calculated as for the normal radar equation but the radar cross section is replaced by the product of the volume backscatter coefficient, \ eta, and the clutter cell volume as derived above.
9.
The reason for this reduction to be relatively modest in the face of significant antenna area and power advantages for the heavy fighter is the non-linear physics of radar range as shown in the radar equation that favors the light fighter.
10.
Assuming an aircraft can patrol an area roughly defined by its radar coverage ( or visible range in the case of pre-radar designs ), and given that in the radar equation range varies with the fourth root of radar power, a larger number of less-powerful radars will provide more coverage than a smaller number of more powerful radars.
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