狭帯域不規則信号用3値相関型中心周波数測定系の解析

Material type: 文書・図像類

Author: 松田, 幸雄ほか

Publisher: 航空宇宙技術研究所

Publication date: 1980-06

Material Format: Digital

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Note (General)：: In many cases of instrumentation, it is necessary to measure the center frequency of narrow-band random signals, and a way utilizing an autocorrelator...

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Material Type: 文書・図像類
Title: 狭帯域不規則信号用3値相関型中心周波数測定系の解析
Author/Editor: 松田, 幸雄
小林, 彬
MATSUDA, Yukio
KOBAYASHI, Akira
Author Heading: 松田, 幸雄
小林, 彬
MATSUDA, Yukio
KOBAYASHI, Akira
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1980-06
Publication Date (W3CDTF): 1980-06
Alternative Title: Analysis of Center Frequency Measurement of Narrow-Band Random Signals with 3-Level Quantized Correlator
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-615
No. or year of volume/issue: 615
Volume: 615
Pages: 15-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): In many cases of instrumentation, it is necessary to measure the center frequency of narrow-band random signals, and a way utilizing an autocorrelator has been suggested. In this method, the input signals are quantized in proper steps and are used for calculating the autocorrelation function. The center frequency of input signals is obtained from the zero crossing points of the autocorrelation function. The quantization steps are determined by considering both accuracies and the complexity of the actual circuits. Though the 2-level quantization has been employed and it gives the simplest circuits, it suffers from the lowered accuracy due to the signal fluctuations and phase disturbances in the range of small signal amplitudes. In this paper, the analysis of measuring error for 2-level and 3-level quantization was done and the results are compared with each other. This shows that 3-level quantization gives far more accurate measurement of center frequencies of narrow-band random signals than 2-level quantization with little penalty of circuit complexity.
資料番号: NALTR0615000
レポート番号: NAL TR-615
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=44870&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=44870&item_no=1&attribute_id=31&file_no=1
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ