Delay Profile Measurement System for Microwave Broadband Transmission and Analysis of Delay Characteristics in an Urban Environment

• MASUI Hironari

  YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.

• TAKAHASHI Koichi

  YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.

• TAKAHASHI Satoshi

  YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.

• KAGE Kouzou

  YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.

• KOBAYASHI Takehiko

  YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.

抄録

There is currently a need for development of a new frequency band to enable creation of next-generation mobile communication systems. Of the potential bands, the 3 GHz and over microwave band holds the greatest promise. Experimental studies on the delay characteristics of multipath propagation must be conducted in order to achieve high-speed transmission in the microwave band. We have developed a system for measuring the microwave broadband propagation delay profile over 100 MHz spread bandwidths in the 3, 8 and 15 GHz bands. Our experiments confirmed system performances of 20-ns resolution, 40-μs maximum measurable delay, relative amplitude error of within 3dB and dynamic range of over 60dB. We used our system to measure delay profiles on an urban area with line of sight, particularly, in terms of the effects of mobile antenna height. Typical examples are presented. Analysis showed that delay spreads increased with transmit/receive distance and decreased with the higher antenna height.

収録刊行物

• IEICE transactions on electronics

  IEICE transactions on electronics 82 (7), 1287-1292, 1999-07-25

  一般社団法人電子情報通信学会

キーワード

• microwave propagation
• urban areas
• delay profile
• delay spread
• mobile antenna height

詳細情報

• CRID: 1571135652318524672
• NII論文ID: 110003220779
• NII書誌ID: AA10826283
• ISSN: 09168524
• 本文言語コード: en
• データソース種別:
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