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Chirp-modulated light-induced thermoelastic spectroscopy for simultaneous precise measurement of resonant frequency and gas concentration. [PDF]
PhotoacousticsChen X +5 more
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Measuring multi-site pulse transit time with an AI-enabled mmWave radar. [PDF]
Nat CommunZhu J +7 more
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Integrated Communication and Localization System With OFDM-Chirp Waveform
IEEE Systems Journal, 2020This paper proposes an integrated communication and localization system scheme using orthogonal frequency division multiplexing (OFDM) chirp waveform. A new and efficient generation method is proposed to produce the OFDM-chirp waveform. The OFDM-chirp waveform is quantitatively compared with conventional OFDM waveform with respect to complementary ...
Shunsheng Zhang +2 more
exaly +3 more sources
New chirp sequence radar waveform
IEEE Transactions on Aerospace and Electronic Systems, 2014The general requirement in the automotive radar application is to measure the target range R and radial velocity v r simultaneously and unambiguously with high accuracy and resolution even in multitarget situations, which is a matter of the appropriate waveform design. Based on a single continuous wave chirp transmit signal, target range R and radial
Hermann Rohling
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An improved OFDM chirp waveform design
2013 5th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2013Orthogonal frequency division multiplexing (OFDM) chirp waveform has good correlation and time-bandwidth product performance, but it offers only two orthogonal signals. In this paper, we propose an improved OFDM chirp waveform based on traditional linear frequency modulation waveform as well as using OFDM to conduct the multi-carrier modulation, which ...
Weizhe Liu
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A Method of Improving the Correlation Properties of OFDM Chirp Waveform Diversity
IEEE Geoscience and Remote Sensing Letters, 2021In this letter, an orthogonal frequency-division multiplexing (OFDM) chirp waveform diversity design scheme is proposed to achieve better correlation properties. First, the subchirp duration and bandwidth are optimized simultaneously to increase the degree of freedom in waveform diversity. Second, an optimization procedure is proposed based on the idea
Dexin Li, Xiaoji Song, Kai Zhou
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A Novel OTFS-Chirp Waveform for Low-Complexity Multi-User Joint Sensing and Communication
IEEE Internet of Things Journal<p>Joint sensing and communication (JSAC) has become increasingly popular in recent years due to spectrum scarcity, hardware limitations, power constraints, and the emergence of applications that require both communication and sensing capabilities.
Hüseyin Arslan, Salah Eddine ZEGRAR
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Cognitive Implementation of Chirp Waveform in UWB System
IEICE Transactions on Communications, 2008Cognitive Radios (CR) can recognize the communication environment and switch its communication scheme to more efficiently and flexibly utilize the radio spectrum. The performance of ultra wideband (UWB) degrades if interference is not suppressed properly. We propose here a series of adaptive chirp waveforms in UWB systems. By designing waveform shaping
Hanbing Shen +2 more
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Structured de-chirp for compressive sampling of LFM waveforms
2012 IEEE 7th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012Stretch processing is often used by radar systems to capture LFM waveforms. Although stretch processing reduces sampling rate, it does so at the expense of increased data collection period. Therefore, the time-bandwidth product of the de-chirped waveform is approximately constant, and stretch processing cannot be considered a compressive technique. The
Bruce Pollock, Nathan A. Goodman
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