Signal processing in recursive rejection filters in the transient mode

DMITRII POPOV; SERGEY SMOLSKIY

Article Details

Signal processing in recursive rejection filters in the transient mode

Authors:

DMITRII POPOV | SERGEY SMOLSKIY

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2018 Vol.26 Issue 1, pp.194-203

Document Type:

Article

Publication Date:

1/2018

Document Language:

Turkish

Document ID (Org No.):

2000735427

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632

Abstract:

 

A recursive rejection filter (REF) oriented to the radar signal extraction from the moving targets on a  background of passive interference in the form of undesired re  ections from fixed or slowly moving objects (so-called  clutter) is the object under investigation. By means of the state variable method, which gives the adequate filter  description in the time domain, the REF structure in the transient mode is synthesized, which is improved with the  aim of transient acceleration with the clutter edge arriving. The REF structure's improvement in the transient mode  is achieved by its reconfiguration, which is made by REF output and feedback switching. The steady-state values of  decorrelated rejection residues from the nonrecursive REF part are passed to the REF output and to feedback circuits,  which practically eliminates a "ring" in the feedback circuits, which is caused by the mean value and   uctuations  of the clutter samples, and significantly accelerates the transient at the REF output. The structure diagram of the  reconfigurable RF in the transient mode by means of recursive couplings switching is offered. A solution of transient  acceleration problems for recursive REFs allows substantive utilization of required characteristics of REFs and their    exible control. A comparative analysis of clutter REF rejection effectiveness of fixed and reconfigurable structures  is performed in the transient mode. It is shown that REF structure reconfiguration by means of recursive coupling  switching essentially reduces the transient duration in the filter and increases the clutter rejection effectiveness in the  transient operation mode.

Article Details

Signal processing in recursive rejection filters in the transient mode

Authors: DMITRII POPOV | SERGEY SMOLSKIY

Publisher: TUBITAK

Journal: Turkish Journal of Electrical Engineering and Computer Science 2018 Vol.26 Issue 1, pp.194-203

Document Type: Article

Publication Date: 1/2018

Document Language: Turkish

Document ID (Org No.): 2000735427

Frequency: Bimonthly

eISSN: 1303-6203

pISSN: 1300-0632

Issues

Authors:

DMITRII POPOV | SERGEY SMOLSKIY

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2018 Vol.26 Issue 1, pp.194-203

Document Type:

Article

Publication Date:

1/2018

Document Language:

Turkish

Document ID (Org No.):

2000735427

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632