JPS60114970U - microwave radiometer - Google Patents
microwave radiometerInfo
- Publication number
- JPS60114970U JPS60114970U JP265384U JP265384U JPS60114970U JP S60114970 U JPS60114970 U JP S60114970U JP 265384 U JP265384 U JP 265384U JP 265384 U JP265384 U JP 265384U JP S60114970 U JPS60114970 U JP S60114970U
- Authority
- JP
- Japan
- Prior art keywords
- output
- noise source
- comparison
- signal
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Radiation Pyrometers (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のマイクロ波放射計の説明歯、第２図はこ
の考案の一実施例を示すマイクロ波放射計の説明図、第
３図は従来とこの考案の入出力特性を比較するための図
である。
図において、１は受信アンテナ、２はスカイホーン、３
は標準雑音源、４は比較雑音源、５は受信機、６は自乗
検波器、７は可変減衰器、８は同期検波器、９は信号処
理回路、１０． １１． １２はスイッチ、１３は比較
反転回路、１４は基準電圧源である。なお、図中同一あ
るいは相当部分には同一符号を付して示しである。Fig. 1 is an illustration of a conventional microwave radiometer, Fig. 2 is an explanatory diagram of a microwave radiometer showing an embodiment of this invention, and Fig. 3 is a diagram for comparing the input/output characteristics of the conventional and this invention. This is a diagram. In the figure, 1 is a receiving antenna, 2 is a skyhorn, and 3 is a receiving antenna.
4 is a standard noise source, 4 is a comparison noise source, 5 is a receiver, 6 is a square law detector, 7 is a variable attenuator, 8 is a synchronous detector, 9 is a signal processing circuit, 10. 11. 12 is a switch, 13 is a comparison/inversion circuit, and 14 is a reference voltage source. Note that the same or equivalent parts in the figures are indicated by the same reference numerals.
Claims (1)
音源と、比較雑音源と、上記受信アンテナの受信信号と
上記比較雑音源の出力信号とを切換えるスイッチと、上
記スイッチで切換えられた信号を増幅する受信機と、こ
の受信機の出力を検波する自乗検波器と、この検波器の
出力を利得制御する可変減衰器と、この可変減衰器の出
力を同期検波して入力信号と比較雑音源のレベル差に比
例した電圧を得る同期検痒器と上記可変減衰器とでＡＧ
Ｃ回路を構成し、上記同期検波器の出力をディジタル値
に変換する信号処理回路とを備え、人工衛星等の飛翔体
に搭載されるマイクロ波放射計において、基準電圧源と
、上記同期検波器と信号処理回路との間に、同期検波器
の出力と上記基準電圧源の出力との差により出力を反転
する比較反転回路を設けるとともに受信機の利得制御の
基準を上記比較雑音源としたことを特徴とするマイクロ
波放射計。A receiving antenna, a low temperature noise source and a standard noise source necessary for calibration, a comparison noise source, a switch for switching between the received signal of the receiving antenna and the output signal of the comparison noise source, and a signal switched by the switch. A receiver to amplify, a square law detector to detect the output of this receiver, a variable attenuator to gain control the output of this detector, and a noise source that synchronously detects the output of this variable attenuator and compares it with the input signal. The AG
In a microwave radiometer that constitutes a C circuit and is equipped with a signal processing circuit that converts the output of the synchronous detector into a digital value, and is mounted on a flying object such as an artificial satellite, a reference voltage source and the synchronous detector are provided. A comparison and inversion circuit is provided between the synchronous detector and the signal processing circuit to invert the output based on the difference between the output of the synchronous detector and the output of the reference voltage source, and the comparison noise source is used as a reference for gain control of the receiver. A microwave radiometer featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP265384U JPS60114970U (en) | 1984-01-12 | 1984-01-12 | microwave radiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP265384U JPS60114970U (en) | 1984-01-12 | 1984-01-12 | microwave radiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60114970U true JPS60114970U (en) | 1985-08-03 |
Family
ID=30476533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP265384U Pending JPS60114970U (en) | 1984-01-12 | 1984-01-12 | microwave radiometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114970U (en) |
-
1984
- 1984-01-12 JP JP265384U patent/JPS60114970U/en active Pending
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