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A summary of the relationship between the Langevin equation, Fokker-Planck-Kolmogorov forward equation (FPKfe) and the Feynman path integral descriptions of stochas-tic processes relevant for the solution of the continuous-discrete filtering problem is provided in this paper. The practical utility of the path integral formula is demonstrated via some… (More)

- Bhashyam Balaji
- 2007

The continuous-discrete filtering problem requires the solution of a partial differential equation known as the Fokker-Planck-Kolmogorov forward equation (FPKfe). In this paper, the path integral formula for the fundamental solution of the FPKfe is derived and verified for the general additive noise case (i.e., explicitly time-dependent state model and with… (More)

In conventional target tracking systems, human operators use the estimated target tracks to make higher level inference of the target behaviour/intent. This paper develops syntactic filtering algorithms that assist human operators by extracting spatial patterns from target tracks to identify suspicious/anomalous spatial trajectories. The targets' spatial… (More)

- Bhashyam Balaji
- 2007

In this paper, the Feynman path integral formulation of the continuous-continuous filtering problem is investigated for the case when the noise in the signal and measurement model is additive. It is shown that it leads to an independent and self-contained analysis and solution of the problem. A consequence of this analysis is Feynman path integral formula… (More)

- Bhashyam Balaji
- 1995

We show that the present limit on the inclusive decay b → sγ provides strong constraints on Technicolor models. In particular, small values of F π and the mass of charged octet and singlet technipions are excluded, assuming the most natural form of the techni-pion coupling to the ordinary quarks.

Recommended by Lawrence Stone Real-radar data containing a small manoeuvring boat in sea clutter is processed using a finite difference (FD) implementation of continuous-discrete filtering with a four-dimensional constant velocity model. Measurement data is modelled assuming a Rayleigh sea clutter model with embedded Swerling 0, 1, or 3 target signal… (More)

An important problem in applied science is the continuous nonlinear filtering problem, i.e., the estimation of a Langevin state that is observed indirectly. In this paper, it is shown that Euclidean quantum mechanics is closely related to the continuous nonlinear filtering problem. The key is the configuration space Feynman path integral representation of… (More)

- Bhashyam Balaji
- 1996

Conventional technicolor models with light charged technipions (π ± T) lead to an unacceptably large contribution to t → π + T b decay rate. Topcolor-assisted technicolor models also have additional PGBs called top-pions (π ± t) which may contribute to this decay. We study the potentially dangerous mixing of charged top-pion and technipions in toy models of… (More)

Recognition and identification of unknown targets is a crucial task in surveillance and security systems. Electronic Support Measures (ESM) are one of the most effective sensors for identification, especially for maritime and air–to–ground applications. In typical surveillance systems multiple ESM sensors are usually deployed along with kinematic sensors… (More)