Papers by Lakhindar Murmu
AEU - International Journal of Electronics and Communications, 2017
Progress In Electromagnetics Research C, 2016
Journal of Circuits, Systems and Computers, 2017
Progress In Electromagnetics Research Letters, 2016
2015 International Conference on Microwave and Photonics (ICMAP), 2015
The defected structure in the signal plane of a microstrip line effectively disturbs the shield c... more The defected structure in the signal plane of a microstrip line effectively disturbs the shield current distribution and added line inductances and capacitances to the line. These new brand of slow-wave structures are called defected microstrip structure (DMS). We have introduced here a new spiral shaped structure with improved filtering characteristics. The frequency characteristics of the proposed unit show one pole stopband response. The equivalent L C parameters are extracted using proposed equivalent LC model. Two such DMS units are cascaded onto High-Low impedance line to realize a bandstop filter having 20 dB rejection bandwidth of 34% and sharpness factor of 50 dB/GHz at both edges.
Progress In Electromagnetics Research Letters, 2015
8th International Conference on Electrical and Computer Engineering, 2014
2013 International Conference on Microwave and Photonics (ICMAP), 2013
2013 International Conference on Microwave and Photonics (ICMAP), 2013
The Sundarban mangrove ecosystem is one of the world's largest mangrove forest extended over Bang... more The Sundarban mangrove ecosystem is one of the world's largest mangrove forest extended over Bangladesh (62%) and India (38%) on the deltaic complex of rivers Ganga, Brahmaputra, and Meghna. The Indian Sundarban Delta (ISD) covers 102 small islands spread over 9630 km 2 , out of which 54 islands in 5370 km 2 are having a population of 4.2 million (census 2011) and rest 48 islands spread across 4260 km 2 are covered by Reserved Forest (RF) with mangrove vegetation. There are incessant changes over the years in Sundarban Delta due to natural and anthropological influences. In the present investigation, an attempt has been made to detect and analyze the changes in mangroves and LU/LC environment of ISD since last 15 years. High-resolution Remote Sensing (RS) satellite data from 1990 to 2016 of equal intervals of ten years has been processed and analyzed with Geospatial Information System (GIS) environment. Comparatively change detection in LU/LC of ISD has been prudently studied over the years 1990, 2000, 2010 and 2016 by using two image processing techniques: Normalized Difference Vegetation Index (NDVI) which is used in detecting the temporal changes in vegetation and Maximum Likelihood Classification (Supervised Classification) technique is used for Land Use/ Land Cover (LU/LC) analysis.
Uploads
Papers by Lakhindar Murmu