Results 221 to 230 of about 70,610 (256)
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On waveform design for optimal target discrimination
International Journal of Imaging Systems and Technology, 1992AbstractProbability theory is applied to the problem of radar target discrimination. The theory is used to construct an excitation waveform (an enhanced discrimination pulse) which maximizes the posterior odds in favor of one target over the other. It is shown that the enhanced discrimination pulse has its spectrum concentrated near the frequency where
Lloyd S. Riggs +3 more
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1999
Detection performance is optimized and range and doppler both improved by maximizing the SNR. Since this needs the pulse to have high energy, long pulses are required unless a very high power transmitter is available. Long pulses also permit good doppler accuracy, but, for simple pulses, give poor range accuracy.
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Detection performance is optimized and range and doppler both improved by maximizing the SNR. Since this needs the pulse to have high energy, long pulses are required unless a very high power transmitter is available. Long pulses also permit good doppler accuracy, but, for simple pulses, give poor range accuracy.
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A Throughput Enhanced JTIDS Waveform Design
2018JTIDS is the active service Data-Link of the USA and is playing an important role in modern warfare. However, the low throughput of 115 kbps becomes its bottle neck. In this paper, a throughput enhanced JTIDS waveform with max throughput of 1.1 Mbps is proposed. Multi-rate LDPC and GMSK are adopted to achieve the throughput.
Yingjie Song, Meng Zhang, Ming Hao
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Radar waveform design in active communications channel
2013 Asilomar Conference on Signals, Systems and Computers, 2013In this paper, we investigate spectrally adaptive radar transmit waveform design and its effects on an active communication system. We specifically look at waveform design for point targets. The transmit waveform is optimized by accounting for the modulation spectrum of the communication system while trying to efficiently use the remaining spectrum ...
Romero, Ric A., Shepherd, Kevin D.
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Design and Spectrum Efficiency of a New Waveform
2012With the rapid deployment of new wireless devices and applications in cellular systems and wireless local area networks (WLAN), there is a growing demand for wireless radio spectrum in last several decades. Spectrum efficiency attracts more and more attention.
Lei Xu 0007 +3 more
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Waveform Design with Spectral Coexistence
2019 IEEE Radar Conference (RadarConf), 2019To ensure spectral compatibility between radar and communication systems, the radar waveform design of spectrum shaping is considered. The weighted squared-error between the designed Energy Spectrum Density (ESD) and the desired ESD is developed as figure of merit to minimize.
Jing Yang +4 more
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Waveform design for electroseismic exploration
The Journal of the Acoustical Society of America, 2006Electroseismic (ES) exploration remotely identifies the presence of hydrocarbons using the conversion of electromagnetic energy to seismic energy. These conversions are relatively larger in a porous, permeable resistive body (such as an oil or gas reservoir) when compared with background conversions.
Scott C. Hornbostel +2 more
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Radar Spectrum Coexistence Waveform Design with Multiple Waveform Constraints
2023 8th International Conference on Computer and Communication Systems (ICCCS), 2023Qinxian Chen +5 more
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Enhanced target detection using a new cognitive sonar waveform design in shallow water
Applied Acoustics, 2023Hadi Amiri, Farbod Razzazi
exaly