Results 51 to 60 of about 18,357,996 (200)
General Signal Model for Multiple-Input Multiple-Output GMTI Radar
Sensors, 2018 Multiple-input multiple-output (MIMO) ground moving target indication (GMTI) radar has been studied recently because of its excellent performance. In this paper, a general signal model is established for the MIMO GMTI radar with both fast-time and slow ...
Fuyou Li +4 more
doaj +1 more source
Universal optical code division multiple access (O-CDMA) encoders/decoders
SPIE Proceedings, 2003 The ideal fiber-optic O-CDMA encoder/decoder technology should be able to simultaneously (a) select the desiredoptical bandwidth, i.e., the wavelength range of the coded signaling channel, e.g., 1500 nm to 1600 nm, to optimizeefficient use of spectrum and power to match network load needs, (b) select the spectral location and number ...
openaire +2 more sources
Impact of Ionospheric Scintillations on GNSS Availability and Precise Positioning
Space Weather, Volume 23, Issue 2, February 2025.Abstract For many applications where accuracy, availability, and integrity are essential, such as geodetic positioning and civil aviation, Global Navigation Satellite Systems (GNSS) are indispensable. However, GNSS signal dependability is severely hampered by ionospheric disturbances, especially equatorial plasma bubbles (EPBs), particularly in ...
C. R. Aguiar +2 more
wiley +1 more source
Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems [PDF]
, 2010 In this contribution we propose and study a novel iterative time-frequency-domain (TF-domain) multiuser detector (MUD) for the multicarrier direct-sequence code-division multiple-access system employing both T-domain and F-domain spreading, which, for ...
Yang, Lie-Liang +5 more
core +2 more sources
Analysis of Serial Search Based Code Acquisition in the Multiple Transmit/Multiple Receive Antenna Aided DS-CDMA Downlink, [PDF]
, 2008 —In this paper, we investigate the serial-search-based initial code-acquisition performance of direct-sequence code division multiple access (DS-CDMA) employing multiple transmit/multiple receive antennas when communicating over uncorrelated Rayleigh ...
Won, Seung, Hanzo, Lajos
core +2 more sources
Distributed arbitration scheme for on‐chip CDMA bus with dynamic codeword assignment
ETRI Journal, 2020 Several code‐division multiple access (CDMA)‐based interconnect schemes have been recently proposed as alternatives to the conventional time‐division multiplexing bus in multicore systems‐on‐chip.
Tatjana R. Nikolic +2 more
doaj +1 more source
IET Circuits, Devices &Systems, Volume 2025, Issue 1, 2025.In this paper, various D flip‐flops (FFs) (DFFs) are studied and analyzed based on the performance and reliability effects of different architectures, technology, area, power, delay, and several other key performance parameters of DFFs. Based on these parameters, a few selected DFFs such as C2SFF, conditional‐bridging FF (CBFF)‐S, self‐shut‐off pulsed ...
Syeda Hurmath Juveria +5 more
wiley +1 more source
Reconfigurable Signal Processing and Hardware Architecture for Broadband Wireless Communications
EURASIP Journal on Wireless Communications and Networking, 2005 This paper proposes a broadband wireless transceiver which can be reconfigured to any type of cyclic-prefix (CP) -based communication systems, including orthogonal frequency-division multiplexing (OFDM), single-carrier cyclic-prefix (SCCP) system ...
Liang Ying-Chang +3 more
doaj +2 more sources
DDMA Signal Separation Method Based on Frame‐Interleaved Binary Mask
Electronics Letters, Volume 61, Issue 1, January/December 2025.To solve the problem of multi‐target separation failure at the same distance in empty‐band Doppler division multiple access system, we propose the frame‐interleaved binary mask method. This method can effectively separate multiple targets in above scenario. ABSTRACT Millimetre‐wave multiple‐input multiple‐output (MIMO) radar has many advantages such as
Lu Qian +3 more
wiley +1 more source
, 2006 In this contribution we propose and investigate a multiple-input multiple-output space-division, code-division multiple-access (MIMO SCDMA) scheme. The main objective is to improve the capacity of the existing DS-CDMA systems, for example, for supporting
Yang, L.-L.
core +1 more source