Results 91 to 100 of about 107,562 (201)

Parallel Direct Digital Synthesis Architecture for Wideband Multi-GHz Chirp Generation

IEEE Access
This paper presents generalized parallel-thread Direct Digital Synthesis (PDDS) architectures for high-frequency and wideband chirp signal generation that exceeds the nominal Nyquist limit imposed by the system clock in conventional single-thread Digital
Aditya Parikshit Khachane, Priyank Atri, Sonu Panchal, Kankan Deka, Ravi Saini, Govind Prasad   +5 more
doaj   +1 more source

Unified waveform design for 6G low-power systems

物联网学报
Technologies such as ambient Internet of things (AIoT), low power wide area (LPWA), and low power wake up signal and radio (LP-WUS/WUR) are key enablers for low power system design.
Huang Wei, Tan Junjie, Jiang Dajie, Wang Wei   +3 more
doaj  

Constant Modulus Wideband MIMO Radar Waveform Design for Transmit Beampattern and Angular Waveform Synthesis

Remote Sensing
A linear frequency modulation (LFM) signal and its corresponding de-chirp operation are one of the basic methods for wideband radar signal processing, which can reduce the burden of the radar system sampling rate and is more suitable for large-bandwidth ...
Hao Zheng, Xiaoxia Zhang, Shubin Wang, Junkun Yan   +3 more
doaj   +1 more source

Waveform Modelling for the Laser Interferometer Space Antenna [PDF]

LISA, the Laser Interferometer Space Antenna, will usher in a new era ingravitational-wave astronomy. As the first anticipated space-basedgravitational-wave detector, it will expand our view to the millihertzgravitational-wave sky, where a spectacular ...
Witek, H., Helfer, T., Markakis, C., Gabella, W., Faye, G., Wachter, J., Bozzola, G., Sberna, L., García-Bellido, J., Pan, Z., Hannam, M., Laguna, P., O'Shaughnessy, R., Maggio, E., Kidder, L., Bonga, B., Leather, B., Mourier, P., Spiers, A., Kavanagh, C., Field, S., Yang, H., Ferguson, D., Lukes-Gerakopoulos, G., Paschalidis, V., Isoyama, S., Seoane, P., Rüter, H., Tamanini, N., Lim, H., Antonelli, A., Pfeiffer, H., Dhesi, M., Shoemaker, D., Chua, A., Zilhão, M., Husa, S., Benkel, R., Maselli, A., Durkan, L., Hinderer, T., Neilsen, D., Sundar, H., Pound, A., Vernieri, D., Warburton, N., Küchler, L., Lovelace, G., Bernard, L., Pappas, G., Barausse, E., Buonanno, A., Casals, M., Hughes, S., Upton, S., Green, S., Clough, K., Katz, M., Akçay, S., Thompson, J., Gerosa, D., Nagar, A., Lousto, C., Wardell, B., Pratten, G., Mathews, J., Ruiz, M., Mandel, I., Shapiro, S., O'Toole, C., Littenberg, T., Novák, J., Lynch, P., Tsokaros, A., Pompili, L., Afshordi, N., Chernoff, D., Brito, R., Larrouturou, F., Tiec, A., Barack, L., Haney, M., Nichols, D., Bonetti, M., Witzany, V., Okounkova, M., Colleoni, M., Toubiana, A., Druart, A., van de Meent, M., Aurrekoetxea, J., Gracia-Linares, M., Khanna, G., Oshita, N., Long, O., Berti, E., Bernuzzi, S., Korol, V., Macedo, R., Pani, P., Lim, E., Sam, Z., Cárdenas-Avendanõ, A., Heffernan, A., Sopuerta, C.   +104 more
core   +1 more source

Sparse Target Recovery Performance Of Multi-Frequency Chirp Waveforms

, 2011
Publication in the conference proceedings of EUSIPCO, Barcelona, Spain ...
Emre Ertin, Lee C. Potter, Randolph L. Moses   +2 more
openaire   +2 more sources

Simulation Study of a Distributed Fiber Optic Vibration Sensing System Using Dual-Chirped Pulses and Frequency Division Multiplexing

Photonics
This paper proposes a distributed vibration sensing system based on dual-chirped pulses and weak fiber Bragg gratings. Compared with conventional dual-pulse heterodyne detection techniques, the proposed approach utilizes the time-frequency ...
Huanyu Pu, Shuyang Hu, Jing Zhang, Yunxin Wang   +3 more
doaj   +1 more source

E-SAR Upgrade to Stepped-Frequency Mode: System Description and Data Processing Approach [PDF]

, 2006
A common way to enhance the range resolution of imaging radars is to adopt stepped frequency waveforms. This paper discusses in detail stepped-frequency processing possibilities on raw and processed data level, focussing on the compensation steps ...
Nottensteiner, Anton, Horn, Ralf, Scheiber, Rolf, Barbosa, Felipe   +3 more
core  

Multiple access chirp-based ultrasonic positioning

, 2017
Distance-based ultrasonic positioning systems (UPSs) using trilateration have been adopted in various types of applications across a wide variety of fields.
SS Ge (9864950), MR Pickering (9866456), Mohammad Khyam (9810281), X Li (4169308)   +3 more
core   +2 more sources

The Invincible (1758) site: an integrated geophysical assessment

, 1998
Chirp sub-bottom profiler and repeat sidescan sonar imaging of the Invincible wreck site (1758) in the Solent (U.K.), interpretation, and implications for management of the ...
Quinn, Rory, Bull, Jonathan M., Adams, Jonathan R., Dix, Justin K.   +3 more
core   +1 more source

Chirp-Encoding-3D-K-Space-Data

, 2019
This contains MRI k-space data for 3d MPRAGE and suseptibility weighted 3d GRE sequences. The data is available for two different encoding schemes (i) Fourier encoding and (ii) Chirp encoding.
Kamlesh Pawar (6270602)
core   +1 more source