@techreport{oai:jaxa.repo.nii.ac.jp:00002758,
 author = {稲宮, 健一 and 森, 雅裕 and Inamiya, Kenichi and Mori, Masahiro},
 month = {Mar},
 note = {最初にGPSの歴史を概観した。GPSの裾野はロケットの出現、マイクロ波領域に至るエレクトロニクスの発達、それらが基礎となり、Sputnikが引き金となって、ロランや、拡散符号の技術が基本要素となって、今日のGPS時代が築かれた。1990年代に現在のGPSの形態が定まり、それ以降補完システムの開発と、その利用分野に力が入れられた。この資料では補完システムについては触れない。最近ベールを脱ぎ始めた次世代のGalileoの意義について述べた。ここまでが20世紀に築かれた航行衛星システムである。21世紀のGNSS(Global Navigation Satellite System)は過去の実績に立脚するが、今後出現するであろう革新技術と相俟って、過去に捉われすぎず、新しい展開が期待されるところである。そこで、将来、世界的な航行衛星システムはより国際的な管理にゆだねられるようになり、国際的な資産になって行くであろう動向について述べた。21世紀の航行衛星システムは単独でできる限り高精度が達成できる構造が望ましく、それに寄与できる可能性のある要素技術のアイデアを1件検討した。これは衛星測距の精度を向上できる技術で、それを通じて、さらに高精度なGNSSが築いていける。このアイデアが今後の発展に寄与できることを期待したい。, A history of GPS is briefly surveyed. In that, a fact is described that a foot of birth of GPS is appearance of rockets and a remarkable progress of electronics in the micro wave region, an origin of GPS is triggered by Sputnik, and the present GPS has been constructed by those past advanced effort and the technologies used in Loran and the spread spectrum code as key factors. The essential structure of GPS had been established in times of 1990, after that, major concern of development has been placed on augmentation systems and civil utilization. This document, however, does not include the augmentation systems. A comment is added on a position of Galileo, which is unveiling recently, for the next generation in the world. Those contents are the activities of 20 century. GNSS (Global Navigation Satellite System) of 21 century will be, of course, based on the already developed achievement at the fundamental layers, however, it is expected that a new deployment for that will be opened through an innovated breakthrough not emergence yet at this moment without too much prepossessed by the past knowledge. And, the future GNSS will be controlled under an international organization and become an international resource. It is preferable that the GNSS of 21 century will be a unified and have higher accuracy than it is, and an idea for trial which would contribute for this purpose is described herein. This is a technology to attain a higher accuracy in area of the inter-satellite ranging, a higher accuracy GNSS would be realized through the technology. It is expected that the described content herein could contribute to progress for the future GNSS., 資料番号: AA0046977000, レポート番号: JAXA-RM-03-024},
 title = {21世紀に向けた航行衛星システムに関する一検討},
 year = {2004}
}