JPH0128913B2 - - Google Patents
Info
- Publication number
- JPH0128913B2 JPH0128913B2 JP56105836A JP10583681A JPH0128913B2 JP H0128913 B2 JPH0128913 B2 JP H0128913B2 JP 56105836 A JP56105836 A JP 56105836A JP 10583681 A JP10583681 A JP 10583681A JP H0128913 B2 JPH0128913 B2 JP H0128913B2
- Authority
- JP
- Japan
- Prior art keywords
- level
- beat signal
- relative distance
- low
- pass filter
- 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.)
- Expired
Links
- 238000005259 measurement Methods 0.000 claims description 15
- 230000007423 decrease Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56105836A JPS587578A (ja) | 1981-07-06 | 1981-07-06 | Fm−cwレ−ダ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56105836A JPS587578A (ja) | 1981-07-06 | 1981-07-06 | Fm−cwレ−ダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS587578A JPS587578A (ja) | 1983-01-17 |
JPH0128913B2 true JPH0128913B2 (enrdf_load_stackoverflow) | 1989-06-06 |
Family
ID=14418112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56105836A Granted JPS587578A (ja) | 1981-07-06 | 1981-07-06 | Fm−cwレ−ダ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS587578A (enrdf_load_stackoverflow) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0672921B2 (ja) * | 1987-03-18 | 1994-09-14 | 株式会社神戸製鋼所 | 高炉の装入物プロフイ−ル計 |
JP4747883B2 (ja) * | 2006-02-27 | 2011-08-17 | トヨタ自動車株式会社 | 物標検出装置および物標検出方法 |
-
1981
- 1981-07-06 JP JP56105836A patent/JPS587578A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS587578A (ja) | 1983-01-17 |
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