Results 71 to 80 of about 927 (180)

Optimal Filters For Range-Time Sidelobe Suppression

, 2000
Publication in the conference proceedings of EUSIPCO, Tampere, Finland ...
openaire   +2 more sources

Low sidelobe silicon optical phased array with Chebyshev amplitude distribution

Nanophotonics
We propose and demonstrate a silicon photonic optical phased array (OPA) with ultra-low sidelobe level. The arbitrary ratio power splitters (ARPSs) are introduced to manipulate the amplitude distribution between different channels and suppress the ...
Zhao Shi, Lian Daixin, Li Wenlei, Chen Jingye, Dai Daoxin, Shi Yaocheng   +5 more
doaj   +1 more source

Sidelobe suppression in structured light sheet fluorescence microscopy by the superposition of two light sheets. [PDF]

Biomed Opt Express, 2023
Han Q, Shi J, Shi F.
europepmc   +1 more source

Low-Frequency Square Kilometer Array Pattern Optimization via Convex Programming

Applied Sciences
A well-known and powerful convex optimization strategy is exploited to enhance the electromagnetic performance of the Square Kilometer Array Low-Frequency radio telescope.
Giada Maria Battaglia, Giuseppe Caruso, Pietro Bolli, Maria Grazia Labate, Roberta Palmeri, Andrea Francesco Morabito   +5 more
doaj   +1 more source

Delay-Doppler Map Shaping through Oversampled Complementary Sets for High-Speed Target Detection

Remote Sensing
Advanced waveform design schemes have been widely employed for radar and sonar remote sensing analysis such as target detection and separation, where significant range sidelobe is a main factor that limits the improvement of analysis performance.
Jiahua Zhu, Zhuang Xie, Nan Jiang, Yongping Song, Sudan Han, Weijian Liu, Xiaotao Huang   +6 more
doaj   +1 more source

An Iterative Deconvolution-Time Reversal Method with Noise Reduction, a High Resolution and Sidelobe Suppression for Active Sonar in Shallow Water Environments. [PDF]

Sensors (Basel), 2020
Li CX, Guo MF, Zhao HF.
europepmc   +1 more source

A Dual-Polarized Wideband Parabolic Reflector Antenna With High Aperture Efficiency and Low Sidelobe Level for L/S-Band Satellite Communications

IEEE Access
A dual-polarized (DP) wideband parabolic reflector antenna with high aperture efficiency and low sidelobe level is proposed for L/S-band vehicular satellite communications.
Xiao Ding, Xingxing Yang, Botao Feng, Chow-Yen-Desmond Sim, Sulin Wu, Kwok L. Chung   +5 more
doaj   +1 more source

Optimization of a programmable λ/2-pitch optical phased array

Nanophotonics
A challenge in optical phased arrays (OPAs) is to achieve single-lobe emission using densely spaced emitters without incurring inter-waveguide optical crosstalk.
Sharma Ankita, Straguzzi John N., Xue Tianyuan, Govdeli Alperen, Chen Fu Der, Stalmashonak Andrei, Sacher Wesley D., Poon Joyce K. S.   +7 more
doaj   +1 more source

Mainlobe and sidelobe jamming suppression method based on distributed array radar with eigen‐projection matrix processing and null constraints

IET Radar, Sonar & Navigation
The jamming in electronic warfare environment significantly degrades the performance of the radar system, especially the mainlobe jamming. The distributed array radar can suppress the mainlobe jamming by increasing the array aperture with auxiliary ...
Bowen Han, Xiaopeng Yang, Qiang Lv, Wolin Li, Zhengyan Zhang, Shichao Zhong   +5 more
doaj   +1 more source

Mainlobe Interference Suppression Based on Compressive Sensing and Covariance Matrix Reconstruction [PDF]

Radioengineering
When mainlobe interference exists in space, the traditional anti-interference methods have problems such as peak offset and the performance of sidelobe interference suppression reduction.
X. Zhao, A. Ren
doaj