Fully adaptive space-time processors

2006 ◽  
pp. 121-158
Keyword(s):  
Space Time ◽  
Fully Adaptive

Detection of MIMO Radar with Space-Time Coding in Compound Gaussian Environment

2011 ◽  
Vol 211-212 ◽  
pp. 320-324
Author(s):  
Peng Ma ◽  
Qing Song Zhou ◽  
Xing Yang
Keyword(s):  
Likelihood Ratio Test ◽  
Design Procedure ◽  
Mimo Radar ◽  
Space Time ◽  
Generalized Likelihood Ratio Test ◽  
Ratio Test ◽  
Space Time Coding ◽  
Fully Adaptive ◽  
Time Coding ◽  
Target Detecting

This paper mainly deals with the target detecting problem of MIMO radar with space time coding (STC) in compound Gaussian environment, which include the correlated Gaussian clutter and uncorrelated Gaussian scattering. The detector based on generalized likelihood ratio test (GLRT) criterion is studied, and two-step design procedure is adopted when the covariance of clutter is unknown. Specifically, a suitable GLRT estimate based on referenced data is inserted into the detector to make fully adaptive. Some numerical results are given, showing that the derived 2s-GLRT of STC MIMO radar can provide a good performance in spikier clutter and the adaptive loss is acceptable.

Space, Time and Einstein

2002 ◽  
Author(s):  
J. B. Kennedy
Keyword(s):  
Space Time

Spinors and Space-Time

1984 ◽  
Author(s):  
Roger Penrose ◽  
Wolfgang Rindler
Keyword(s):  
Space Time

Do Writing Directions Influence How People Map Space onto Time?

2018 ◽  
Vol 77 (4) ◽  
pp. 173-184
Author(s):  
Wenxing Yang ◽  
Ying Sun
Keyword(s):  
Mental Representations ◽  
Space Time ◽  
Horizontal Axis ◽  
Causal Role ◽  
Writing Systems ◽  
Temporal Cognition ◽  
Japanese Speakers ◽  
Psychological Experiments ◽  
Vertical Up

Abstract. The causal role of a unidirectional orthography in shaping speakers’ mental representations of time seems to be well established by many psychological experiments. However, the question of whether bidirectional writing systems in some languages can also produce such an impact on temporal cognition remains unresolved. To address this issue, the present study focused on Japanese and Taiwanese, both of which have a similar mix of texts written horizontally from left to right (HLR) and vertically from top to bottom (VTB). Two experiments were performed which recruited Japanese and Taiwanese speakers as participants. Experiment 1 used an explicit temporal arrangement design, and Experiment 2 measured implicit space-time associations in participants along the horizontal (left/right) and the vertical (up/down) axis. Converging evidence gathered from the two experiments demonstrate that neither Japanese speakers nor Taiwanese speakers aligned their vertical representations of time with the VTB writing orientation. Along the horizontal axis, only Japanese speakers encoded elapsing time into a left-to-right linear layout, which was commensurate with the HLR writing direction. Therefore, two distinct writing orientations of a language could not bring about two coexisting mental time lines. Possible theoretical implications underlying the findings are discussed.

Sign in / Sign up

Export Citation Format

Share Document