Results 1 to 10 of about 44,983 (204)
Improving radar performance with constant envelope multi-level chirp
Tehnički Glasnik, 2019 M-level Continuous Phase Chirp Modulation is considered for data transmission. In this article, we would like to propose a new approach to transmitting information with the help of multi-level wave guide signaling. The main problem with the classic chirp
Farhad Bahadori-Jahromi +1 more
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ENVELOPE FLUCTUATIONS DISTRIBUTION OF SIMPLE RADAR PULSE BACKSCATTERING IN RARIFIED MEDIUM
Научный вестник МГТУ ГА, 2018 The basis of modern radar techniques is the direct use of radio-physical data on the power of backscattering. At the same time, the data volume received from the radar allows us to form new estimates and essentially specify classical ones.
D. A. Denisenkov +2 more
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Automatic Arm Motion Recognition Based on Radar Micro-Doppler Signature Envelopes [PDF]
IEEE Sensors Journal, 2020 In considering human-machine interface (HMI) for smart environment, a simple but effective method is proposed for automatic arm motion recognition with a Doppler radar sensor. Arms, in lieu of hands, have stronger radar cross-section and can be recognized from relatively longer distances.
Zhengxin Zeng, Moeness G. Amin, Tao Shan
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Hand Gesture Recognition based on Radar Micro-Doppler Signature Envelopes [PDF]
2019 IEEE Radar Conference (RadarConf), 2018 We introduce a simple but effective technique in automatic hand gesture recognition using radar. The proposed technique classifies hand gestures based on the envelopes of their micro-Doppler signatures. These envelopes capture the distinctions among different hand movements and their corresponding positive and negative Doppler frequencies which are ...
Moeness G. Amin, Zhengxin Zeng, Tao Shan
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Chirped Waveform Generation With Envelope Reconfigurability for Pulse Compression Radar
IEEE Photonics Technology Letters, 2015 This work was supported in part by the Ministerio de Ciencia y Tecnologia through the National Project under Grant TEC2014-60378-C2-1-R and in part by Generalitat Valenciana through the Regional Project under Grant PROMETEO FASE II/2013/012.
Manuel Rius +3 more
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Precise Radar Target Ranging Estimation Based on Slip Matching of Envelopes [PDF]
Advances in Computer Science Research, 2015 A novel precise radar target ranging method based on echo phases and slip matching of envelopes is presented in this paper. The method provides a high precision with rootmean-square error at sub-wavelength level, and it only requires envelopes of the echo pulses. The difficulty is matching procedure of envelopes. According to the principle of resolving
Liqiang Zhu, Yongxiang Liu, Dekang Zhu
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Envelope detection for a double-sideband Low IF CW radar
2018 IEEE/MTT-S International Microwave Symposium - IMS, 2018 The requirement to detect weak physiology motion by Doppler radar arises new architectures utilizing low intermediate frequency (IF) to achieve high signal-to-noise ratio (SNR). With the help of low IF, the significant motion information is modulated to IF domain, promoting the system's resistivity to both noise impact and AC distortion.
Xujun Ma +3 more
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Advancing Remote Life Sensing for Search and Rescue: A Novel Framework for Precise Vital Signs Detection via Airborne UWB Radar [PDF]
SensorsNon-contact vital signs detection of the survivors based on bio-radar to identify their life states is significant for field search and rescue. However, when transportation is interrupted, rescue workers and equipment are unable to arrive at the disaster
Yu Jing +6 more
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Envelope Detection for an ADC-Relaxed Double-Sideband Low-IF CW Doppler Radar
IEEE Transactions on Microwave Theory and Techniques, 2018 In this paper, we propose a new envelope detection (ED) method to reduce the analog-to-digital converters’ (ADCs) sampling rate from 20 kHz to 20 Hz in a double-sideband low-intermediate-frequency (IF) continuous-wave Doppler radar. Compared with the conventional synchronous demodulation (SD) method, which typically consumes a large amount of ADC ...
Xujun Ma +4 more
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Frequency Discrimination Method Using Asymmetric Transmission Time in FSK Radar [PDF]
Journal of Electromagnetic Engineering and Science, 2022 A frequency discrimination method based on transmission time control is proposed for effective absolute distance measurement using frequency-shift keying (FSK) radar. In FSK radar, each frequency is transmitted for different durations using an asymmetric
Jae Young Sim, Jong-Ryul Yang
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