Page 26 - Fundamentals of Radar Signal Processing

K quantizer step size
K R Range spatial frequency (cycles per meter)

K u Cross-range spatial frequency (cycles per meter)
K , K , K z Spatial frequency in x, y, or z dimensions
y
x
Spatial frequency corresponding to AOA θ (cycles per
K
θ
meter)
Normalized spatial frequency corresponding to AOA θ
k
θ
(cycles per sample)
L Number of fast time samples per pulse

L a Atmospheric loss factor
L d Target depth as viewed from the radar

L 0 Maximum acceptable signal-to-interference ratio loss
L s System loss factors; synthetic aperture radar swath length

L SIR Signal-to-interference ratio loss
L w Target width as viewed from the radar

LPG Loss in processing gain
m Mean of random variable

m n Mean of nth element of a random vector
Mean of random vector

Nonrandom portion of mean of random vector random

Number of slow time samples per coherent processing
M
interval

M Tracking mean-square error estimate matrix

M DD Minimum detectable Doppler shift
M DD+ , M DD- Minimum detectable positive, negative Doppler shift

M opt Optimum value of M in “M of N” detection rule
M s DPCA time slip

n P Matched filter output noise power
N Noise power; number of phase centers

N γ Number of spotlight SAR radial slices
N R Number of spotlight SAR range samples

N spot Number of spotlight SAR images per unit time
p (·) Probability density function for a random variable x
x
P (·) Cumulative density function for a random variable x
x
P Power; degrees of freedom in space-time snapshot

P(θ, ϕ) Antenna one-way power pattern