The concept of Quasi-Matched Filtering (QMF) is applied to the class of QAM symbol rate sampled receivers. The underlying principles and key design tradeoffs are presented. A composite optimization strategy to obtain physically realizable low-Q biquadratic QMF networks that meet in an optimal manner stringent in-band performance requirements is proposed. The superior performance of the proposed...

a filtering power divider/power combiner based on half mode substrate integrated waveguide technology for high power applications is proposed. this design includes one half mode substrate integrated waveguide cavity, one matched load, and four sections of quarter-wavelength transmission lines. the high isolation between output ports is obtained by combining the half mode substrate integrated wa...

In deriving compass information from the pattern of polarized light in the sky (celestial e-vector pattern), hymenopteran insects like bees and ants accomplish a truly formidable task. Theoretically, one could solve the task by going back to first principles and using spherical geometry to compute the exact position of the sun from single patches of polarized skylight. The insect, however, does...

The speedup of heavy numerical tasks by quantum computing is now actively investigated in various fields including data analysis physics and astronomy. In this paper, we propose a algorithm for matched filtering gravitational wave (GW) based on the previous work Gao et al. [Phys. Rev. Research 4, 023006 (2022)]. Our approach uses Monte Carlo integration signal-to-noise ratio (SNR) calculation i...

An adaptive tracking filter for maneuvering targets is developed. The approach is based on matched filtering of the innovations sequence. Analytical solutions based on the invariant subspace method for time-invariant kinematic models along with the corresponding steady-state Kalman filter kernels are derived. Asymptotic and finite-memory operating characteristics are deduced. The proposed adapt...