NDLI: Characterization of in-building UHF wireless radio communication channels using spectral energy measurements

Content Provider	IEEE Xplore Digital Library
Author	Donaldson, B.P. Fattouche, M. Donaldson, R.W.
Copyright Year	1963
Abstract	A simple, cost-effective means is developed to estimate the time-invariant wireless radio channel impulse response h(t) using only the magnitude of the channel transfer function, H(jw). The Hilbert transform is used to calculate the phase of H(jw) from its magnitude. Inverse discrete Fourier transformation (IDFT) of H(jw) yields h(t). The Hilbert transform relation is applicable provided H(jw) is a minimum phase transfer function. An experimental in-building wireless channel testbed was established, for which h(t) was determined over the 1000-2500 MHz range. Both line of sight (LOS) and non-LOS transmission was investigated. Good agreement was observed between values of h(t) calculated from measured values of H(jw) and from those based only on [H(jw)] and its Hilbert transform. Even when the minimum phase condition is violated, h(t) as calculated from [H(jw)] and its Hilbert transform provides a useful lower bound on the time-spread of h(t). The measurement of [H(jw)] is easily implemented using a signal source, receiving antenna, and spectrum analyzer. A personal computer and software are required to calculate the phase of H(jw) and its IDTF. Existing frequency-domain measurement schemes utilize a vector network analyzer to measure H(jw) (magnitude and phase angle). Such equipment is expensive, subject to transmitter-receiver crosstalk, and restrictive as to the relative locations of the transmitting and receiving antenna.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	80
Ending Page	86
Page Count	7
File Size	831071
File Format	PDF
ISSN	0018926X
Volume Number	44
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Radio communication Antenna measurements Transfer functions Discrete transforms Receiving antennas Frequency measurement Phase measurement Testing Spectral analysis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Urban propagation measurements for ground based communication in the military UHF band

An Experimental Look at Rf Propagation in Narrow Tunnels

Measurements of VHF/UHF propagation characteristics over arctic paths

Distance-measurement error associated with antenna phase-center displacement in time-reference radio positioning systems

UHF antenna gain calibration

Dense Urban Channel Measurements for Utility Pole Fixed Wireless Links

Indoor Localization of Passive UHF RFID Tags Based on Phase-of-Arrival Evaluation

Building material characterization from complex transmissivity measurements at 5.8 GHz

UHF wireless communication channel in a tree canopy

Characterization of in-building UHF wireless radio communication channels using spectral energy measurements

Similar Documents

Urban propagation measurements for ground based communication in the military UHF band

An Experimental Look at Rf Propagation in Narrow Tunnels

Measurements of VHF/UHF propagation characteristics over arctic paths

Distance-measurement error associated with antenna phase-center displacement in time-reference radio positioning systems

UHF antenna gain calibration

Dense Urban Channel Measurements for Utility Pole Fixed Wireless Links

Indoor Localization of Passive UHF RFID Tags Based on Phase-of-Arrival Evaluation

Building material characterization from complex transmissivity measurements at 5.8 GHz

UHF wireless communication channel in a tree canopy

Characterization of in-building UHF wireless radio communication channels using spectral energy measurements