O	Rotating center of the target
r	Unit vector of the RLOS
×	Outer product
●	Inner product
P	Random scatterer on the target
λ	Wavelength
Ω	Synthetic vector for the angular velocity of the rotating target
K	Polynomial phase order
α0	Constant term
R0	Initial distance from radar to the target center
t0	Initial time
Q	Number of scatterers in a range cell
tk	Time center of the modified version of Chirplet atom
ωk	Frequency center of the modified version of Chirplet atom
βk	Chirp rate of the modified version of Chirplet atom
γk	Curvature of the modified version of Chirplet atom
σk	Width for the modified version of Chirplet atom
Ck	Weighted coefficient
(⋅)∗	Conjugate
m1	Time lags
m2	Time lags