JPS6442469U - - Google Patents
Info
- Publication number
- JPS6442469U JPS6442469U JP13788987U JP13788987U JPS6442469U JP S6442469 U JPS6442469 U JP S6442469U JP 13788987 U JP13788987 U JP 13788987U JP 13788987 U JP13788987 U JP 13788987U JP S6442469 U JPS6442469 U JP S6442469U
- Authority
- JP
- Japan
- Prior art keywords
- local oscillator
- noise power
- mixer
- antenna
- output signal
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Radiation Pyrometers (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
第１図はこの考案の一実施例のミリ波レーダ装
置を示す図、第２図は従来のミリ波レーダ装置を
示す図である。
図において、１はアンテナ、２は単投単極スイ
ツチ、３はミキサ、４は局部発振器、５は増幅器
、６は検出部、７は制御部、８はフイルタである
。なお、各部中同一符号は同一又は相当部分を示
すものとする。
FIG. 1 is a diagram showing a millimeter wave radar device according to an embodiment of this invention, and FIG. 2 is a diagram showing a conventional millimeter wave radar device. In the figure, 1 is an antenna, 2 is a single-throw single-pole switch, 3 is a mixer, 4 is a local oscillator, 5 is an amplifier, 6 is a detection section, 7 is a control section, and 8 is a filter. Note that the same reference numerals in each part indicate the same or equivalent parts.
Claims (1)
するアンテナと、局部発振器と、この局部発振器
の出力信号により上記アンテナで受信された信号
周波数を中間周波数に変換するミキサと、上記ミ
キサと上記局部発振器との間に接続されたフイル
タと、上記ミキサの出力を増幅する増幅器と、上
記局部発振器の出力信号が上記フイルタの通過域
のとき上記アンテナで受信された物体の雑音電力
を上記ミキサ、増幅器を介して導入し、また上記
局部発振器の出力信号が上記フイルタのしや断域
のとき上記ミキサで発生する温度Ｔ０の内部雑音
電力を上記増幅器を介して導入し、上記物体の雑
音電力と上記内部雑音電力との比を求めることに
より上記内部雑音温度Ｔ０を基準として物体の等
価雑音温度を検出する検出部とを具備したことを
特徴とするミリ波レーダ装置。 an antenna that receives noise power in the millimeter wave band radiated from an object; a local oscillator; a mixer that converts the signal frequency received by the antenna into an intermediate frequency using an output signal of the local oscillator; and the mixer and the local oscillator. a filter connected between the oscillator, an amplifier for amplifying the output of the mixer, and a noise power of an object received by the antenna when the output signal of the local oscillator is in the passband of the filter; Also, when the output signal of the local oscillator is in the cutoff range of the filter, the internal noise power at a temperature T0 generated in the mixer is introduced through the amplifier, and the noise power of the object and A millimeter wave radar device comprising: a detection unit that detects an equivalent noise temperature of an object based on the internal noise temperature T0 by determining a ratio to the internal noise power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13788987U JPS6442469U (en) | 1987-09-09 | 1987-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13788987U JPS6442469U (en) | 1987-09-09 | 1987-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442469U true JPS6442469U (en) | 1989-03-14 |
Family
ID=31399725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13788987U Pending JPS6442469U (en) | 1987-09-09 | 1987-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442469U (en) |
-
1987
- 1987-09-09 JP JP13788987U patent/JPS6442469U/ja active Pending