Results 11 to 20 of about 4,285,302 (266)
Multi-Frequency Band Pyroelectric Sensors [PDF]
Sensors, 2014 A methodology is proposed for designing a multi-frequency band pyroelectric sensor which can detect subjects with various frequencies or velocities. A structure with dual pyroelectric layers, consisting of a thinner sputtered ZnO layer and a thicker aerosol ZnO layer, proved helpful in the development of the proposed sensor.
Chun-Ching Hsiao, Sheng-Yi Liu
openaire +3 more sources
Multi-Frequency VLBI observations of 3C390.3 [PDF]
Symposium - International Astronomical Union, 1996 We have mapped the broad line radio galaxy 3C390.3 at 1.3, 6, and 18 cm wavelengths with resolutions ranging from 0.2 to 2.7 mas. Our new 6 cm image is consistent with a stationary bright region located 4 to 5 mas from the core and motion of the other features with apparent velocities of 0.4 to 0.7 mas/yr.
E. Preuss, W. Alef, K. I. Kellermann
openaire +1 more source
Noncoherent Multi-Way Relay Based on Fast Frequency-Hopping M-ary Frequency-Shift Keying [PDF]
, 2010 Information exchange among a group of users is implemented with the aid of fast frequency-hopping $M$-ary frequency-shift keying multi-way relay (FFH/MFSK MWR). The FFH/MFSK MWR scheme uses two time-slots per symbol for achieving the information exchange,
Zhangdui Zhong +5 more
core +1 more source
Evaluation of BDS/GPS Multi-Frequency RTK Positioning Performance under Different Baseline Lengths
Remote Sensing, 2022 The BeiDou Navigation Satellite System (BDS) is fully operational and provides positioning, navigation, and timing services to users worldwide. To comprehensively evaluate the BeiDou-3 Navigation Satellite System (BDS-3) global real-time kinematic (RTK ...
Ershen Wang +6 more
doaj +1 more source
Multi-Stage Multi-User Detection Assisted Asynchronous Fast-FH/MFSK [PDF]
, 2003 A multi-stage Multi-User Detection (MUD) scheme designed for asynchronous fast Frequency-Hopping/Multilevel Frequency-Shift-Keying (fast-FH/MFSK) systems is proposed, in which each signal detection interval is divided into sub-intervals and the MUD is ...
L. Hanzo +3 more
core +1 more source
Multi-frequency therapeutic ultrasound: A review
Ultrasonics Sonochemistry, 2023 Focused ultrasound is a noninvasive, radiation-free and real-time therapeutic approach to treat deep-seated targets, which benefits numerous diseases otherwise requiring surgeries. Treatment efficiency is one of the key factors determining therapeutic outcomes, but improving it solely by increasing the total power can be limited by the performance of ...
Dong Zhang +6 more
openaire +3 more sources
Multi-Frequency Phase Synchronization
CoRR, 2019 12 pages, 9 figures.
Tingran Gao, Zhizhen Zhao 0001
openaire +3 more sources
A computationally efficient multi-mode equaliser based on reconfigurable frequency domain processing [PDF]
, 2005 Broadband wireless communication systems requires that systems be designed to operate with high spectral efficiency in wideband channels. Such requirements make OFDM an attractive transmission technology due to the fact it exploits the computational ...
Beach, Mark A, Hart, MJ
core +1 more source
NaviSoC: High-Accuracy Low-Power GNSS SoC with an Integrated Application Processor
Sensors, 2020 A dual-frequency all-in-one Global Navigation Satellite System (GNSS) receiver with a multi-core 32-bit RISC (reduced instruction set computing) application processor was integrated and manufactured as a System-on-Chip (SoC) in a 110 nm CMOS ...
Tomasz Borejko +11 more
doaj +1 more source
Multi-phase System Supplied by SVM VSI: A New Fast Algorithm to Compute Duty Cycles [PDF]
, 2004 La version éditeur de cette article est disponible à l'adresse suivante : http://www.epe-association.org/epe/index.phpMany authors proposed SVM VSI applied to multi-phase ...
HAUTIER, Jean-Paul +2 more
core +1 more source