Results 291 to 300 of about 1,949,123 (341)

Multiple Input-Multiple Output Quantum Radar

2020 IEEE Radar Conference (RadarConf20), 2020
We consider a quantum radar, using as sources for entangled photons devices with spontaneous parametric downconversion, with a given number of channels. This conception is similar to a MIMO radar and we exploit the detection theory for this case to show a neat improvement in the receiver operating characteristics (ROC) curves with increasing number of ...
Marco Frasca, Alfonso Farina
openaire   +1 more source

Multiple Input Multiple Output (MIMO) Antennas

2023
The advancement of antennas that can access high data speeds, and have higher gain, is largely responsible for the advancements in wireless technology. One such antenna called the multiple input multiple output (MIMO). This antenna has attracted the utmost attention of the researchers owing to its features like higher capacity, increased data rate, low
Anindita Bhattacharjee, Anirban Karmakar, Anuradha Saha   +2 more
openaire   +1 more source

Multiple-Input Multiple-Output SAR

2017
For the conventional SAR, the swath width and azimuth resolution are contradictions because of the limitations of minimum antenna area, so they cannot be improved simultaneously.
Ruliang Yang, Haiying Li, Shiqiang Li, Ping Zhang, Lulu Tan, Xiangwu Gao, Xueyan Kang   +6 more
openaire   +1 more source

Power permutation modulation in multiple‐input multiple‐output systems

Transactions on Emerging Telecommunications Technologies, 2021
AbstractThe forthcoming communications standards are conjectured to require unprecedentedly high spectral efficiency values. Motivated by this fact, we propose a new transmission scheme for multiple‐input multiple‐output systems, which is termed as power permutation modulation (PPM). In addition to the conventional data‐carrying modulated symbols, some
Serdar Özyurt, Oğuz Kucur
openaire   +3 more sources

Identification of interconnected multiple-input multiple-output systems: Application to a multiple-input multiple-output thermal process

International Journal of Systems Science, 1999
A new algorithm for estimation of the parameters of multiple-input multiple-output (MIMO) systems with strong interconnections between inputs and outputs. The proposed algorithm uses a new transformation of the input-output difference equation. A modified Kalman filter is employed to estimate recursively and sequentially parameters of the MIMO system ...
M. Ouladsine, A. EL Hajjaji, A. Rachid
openaire   +1 more source

Macrocell multiple-input multiple-output system analysis

IEEE Transactions on Wireless Communications, 2006
We develop a semi-deterministic semi-stochastic channel model for the multiple-input multiple-output (MIMO) system under the macrocell environment with local-to-mobile and local-to-base scatterers. We show that employing closely-spaced antennas (e.g., phased array) at the base station is capable of achieving diversity via the local-to-base scatterers ...
null Gang Shi, A. Nehorai
openaire   +1 more source

Multiple-input, multiple-output pass transistor logic

International Journal of Electronics, 1995
Techniques are presented for the design of multiple-input, multiple-output pass transistor circuits. By using shared functions as map-entered variables, dramatic reductions in transistor count can be achieved. Applied to a Viterbi decoder design for NASA, the transistor count of a CMOS integrated circuit was reduced by nearly 100 000 transistors over ...
M. SHAMANNA, K. CAMERON, S. R. WHITAKER
openaire   +1 more source

Capacity of the Multiple-Input, Multiple-Output Poisson Channel

Proceedings IEEE International Symposium on Information Theory,, 2003
We examine the Shannon capacity of the single-user, multiple-input, multiple-output (MIMO) Poisson channel with peak and average transmit power constraints. We derive upper and lower bounds on the capacity that coincide in a number of special cases.
S.M. Haas, J.H. Shapiro
openaire   +1 more source

On Capacity of Ergodic Multiple-Input Multiple-Output Channels

2005 Australian Communications Theory Workshop, 2006
Capacity results for Gaussian matrix channels are investigated where the receiver has knowledge of the channel realization and the transmitter has knowledge only of the channel statistics. We extend beamforming results and examine arbitrary ergodic random vector channels, under the condition that the transmit covariance is independent of the ...
L. Hanlen, A. Grant
openaire   +2 more sources

Multiple-input multiple-output (MIMO) radar: performance issues

Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004., 2005
The application of multiple-input multiple-output (MIMO) techniques to multistage radar offers a number of advantages, including improved resolution and sensitivity. Depending upon the radar's mode of operation, the array design and the environment, these advantages may or may not be significant. In this paper, a simple analytic model for ground moving
K.W. Forsythe, D.W. Bliss, G.S. Fawcett
openaire   +1 more source