| Download | - View final version: Final report on AN/MPQ-501 receiver improvement work (PDF, 12.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.4224/21275322 |
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| Author | Search for: Hendry, A.1 |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Technical Report |
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| Physical description | 50 p. |
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| Abstract | Recent work on improvement of the AN/MPQ-501 counter mortar radar receiving system is summarized, along with calculated and measured effects of rainfall on the system. Laboratory evaluation of an image-rejection mixer and a commercial parametric amplifier indicates that a basic receiver noise figure close to 4db can be obtained. A revision of the noise monitor equipment to improve its accuracy is described. The construction and performance of a ceramic waveguide window having a VSWR less than 1.1 within the radar band is included. Measurement of the effectiveness of the circular polarizer as a means of reducing rain clutter indicates a gross cancellation of about 20db. Measured clutter levels of 22 to 32db above receiver noise power for light to moderate rainfall rates at a range of 10km are reported. |
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| Publication date | 1967-01 |
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| Publisher | National Research Council Canada. Radio and Electrical Engineering Division |
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| Series | |
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| Language | English |
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| NRC number | NRCC 35685 |
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| NPARC number | 21275322 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 61f1d2e6-72ad-4bee-9d4c-4a6263a4ab4a |
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| Record created | 2015-06-09 |
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| Record modified | 2025-10-31 |
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