No abstract

No abstract

Space-time adaptive array processing has emerged as a key technology thrust area for the next generation of airborne radar systems due t o its inherent potential for vastly improving moving target indicator (MTI) performance. Unfortunately, these performance gains come with a commensurate increase in on-line computational complexity if full degree-of-freedom (DOF) STAP processors are employed. In this paper we introduce a class of efficient STAP processors which exploit the fact that the full DOF space-time clutter covariance matrix is rank deficient with respect to a coherent processing interval (CPI).

No abstract

No abstract

No abstract

No abstract

Optimal detection of a target return contaminated by signal-dependent interference, as well as additive channel noise, requires the design of a transmit pulse f ( t ) and a receiver impulse response h(t) jointly maximizing the putput signal to interference plus noise ratio, SINR.Despite the highly nonlinear nature of this problem, it has been pdssible to show that f ( t ) may always be chosen minimum-phase. A full analysis concludes with the construction of an effective numerical procedure for the determination of optimal pairs ( f, h ) that appears to converge satisfactorily for most values of input SINR. Extensive simulation reveals that the shape of f ( t ) can be a critical factor. In particular, the performance of a chirp-like pulse is often unacceptable, especially when the clutter a n d channel noise are low-pass dominant and comparable.