Introduction to Radar Basics - MATLAB Simulations for Radar Systems Design - page 47

Figure 1.27. SNR versus detection range for both target types with and
without pulse integration.

It follows that the new missile and aircraft detection ranges are

R a = 78 × 1.63 = 126.9 Km

(1.112)

R m = 48 × 1.63 = 78.08 Km

Note that extending the minimum detection range for a missile to

R m = 78 Km

would increase the size of the extent of the elevation search volume. More pre-
cisely,

2
78

-----   θ 1 = atan = 1.47°

(1.113)

It follows that the search volume (in steradians) is now Ω

θ 2 – θ 1

13.13 –

57.296

1.47

Ω = 360 × ----------------------- = 360 × ------------------------------ = 1.279 steradians (1.114)

) 2 ) 2 ( 57.296 (

Alternatively, integrating 7 pulses non-coherently with ( SNR ) NCI = 13 dB

yields

( SNR ) 1 = 5.6 dB (1.115)

and the integration loss is