Zobrazeno 1 - 10
of 20 327
pro vyhledávání: '"SPECTRUM ANALYZER"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 1853-1863 (2025)
This article presents a commercially available, low-power digital spectrometer application specific integrated circuit (ASIC). The ASIC computes 8192 frequency bins across the 4 GHz of resolvable bandwidth (488 kHz spectral resolution) and accumulate
Externí odkaz:
https://doaj.org/article/76a99420078a4b64b88f77769206c90c
Autor:
Kaisarali Kadyrzhan, Daulet Kaldybekov, Saltanat Baipakbaeva, Yelizaveta Vitulyova, Dinara Matrassulova, Ibragim Suleimenov
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7770 (2024)
A scheme for the Fourier–Galois spectrum analyzer for the field GF(31) is proposed. It is shown that this analyzer allows for solving a wide enough range of problems related to image processing, in particular those arising in the course of experime
Externí odkaz:
https://doaj.org/article/abf49564d7a943e29d2729e2862d0f7d
Autor:
Zühal Aslan, Murat Yücel
Publikováno v:
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, Vol 11, Iss 3, Pp 1318-1326 (2023)
Optik spektrum analizörü (OSA), fiber optik sistemlerde verilen bir giriş sinyalinin sistem çıkışında büyüklüğünü ve gücünü frekans aralıklarına göre ölçer ve sonuçları grafiksel olarak gösterirler. Ancak OSA’lardan ölçü
Externí odkaz:
https://doaj.org/article/2f4df7ed115044b48c04d03be194b643
Publikováno v:
Journal of Electrical and Electronics Engineering, Vol 16, Iss 1, Pp 23-26 (2023)
This work aims to show how the data obtained from the DSA815 spectrum analyzer can be processed. For example, the monitoring of a frequency band 91.3MHz -109.2MHz was chosen, but other frequency bands within the measurement range of the analyzer (9Hz
Externí odkaz:
https://doaj.org/article/69c03c747cc14a1987342c84844df6ab
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 4, Pp 1-6 (2023)
We propose and demonstrate a measurement technique of the intrinsic modulation responses of semiconductor lasers with high sensitivity in a wide modulation frequency range. The technique is based on the two-tone optical modulation and lock-in detecti
Externí odkaz:
https://doaj.org/article/8c0b1cc2d7d44d70b2caf089ab1c7c1d
Autor:
Fatmawati Sabur, Mulyadi Nur
Publikováno v:
Al-Ishlah: Jurnal Pendidikan, Vol 14, Iss 2, Pp 2087-2098 (2022)
The purpose of the study was to test the feasibility of a raspberry python-based prototype spectrum analyzer and a software-defined radio-level transfer register designed to meet the practical needs of the Telecommunications Engineering laboratory. F
Externí odkaz:
https://doaj.org/article/346437253f484eaca6f364e307f84698
Publikováno v:
Engineering Proceedings, Vol 47, Iss 1, p 22 (2023)
This article presents the development of a prototype software for a terrestrial digital TV signal spectrum analyzer using software-defined radio (SDR). This study involves four phases: signal reception from Quito’s TV channels, configuring the soft
Externí odkaz:
https://doaj.org/article/21d6452d1fcd4c269ff9a2fdb08d7e37
Publikováno v:
IEEE Access, Vol 10, Pp 42061-42068 (2022)
We present an ultra-broadband and inexpensive photonic spectrum analyzer (PSA) for wireless signals with a frequency coverage from the microwave range till deep into the terahertz range. The difference frequency of two continuous-wave laser diodes wo
Externí odkaz:
https://doaj.org/article/3bc44ab4185b468d90408499fb1f9d64
Autor:
Shoichiro Yokota, Naoki Terada, Ayako Matsuoka, Naofumi Murata, Yoshifumi Saito, Dominique Delcourt, Yoshifumi Futaana, Kanako Seki, Micah J. Schaible, Kazushi Asamura, Satoshi Kasahara, Hiromu Nakagawa, Masaki N. Nishino, Reiko Nomura, Kunihiro Keika, Yuki Harada, Shun Imajo
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-18 (2021)
Abstract The mass spectrum analyzer (MSA) will perform in situ observations of ions and magnetic fields around Phobos as part of the Martian Moons eXploration (MMX) mission to investigate the origin of the Martian moons and physical processes in the
Externí odkaz:
https://doaj.org/article/c67c0922827f4e8b98958b916a2d0d6f
Publikováno v:
Технічна інженерія, Vol 2, Iss 88, Pp 95-102 (2021)
Nowadays the main approach of organizing the radio frequency spectrum monitoring is fully automatic continuous analysis of a given frequency range. The overwhelming majority of software products of the world leaders specializing in the development of
Externí odkaz:
https://doaj.org/article/077178c8c8174a619301ca0db1cdabab