JPH0128914B2 - - Google Patents
Info
- Publication number
- JPH0128914B2 JPH0128914B2 JP56142042A JP14204281A JPH0128914B2 JP H0128914 B2 JPH0128914 B2 JP H0128914B2 JP 56142042 A JP56142042 A JP 56142042A JP 14204281 A JP14204281 A JP 14204281A JP H0128914 B2 JPH0128914 B2 JP H0128914B2
- Authority
- JP
- Japan
- Prior art keywords
- level
- beat signal
- output
- detection circuit
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 52
- 238000005259 measurement Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process 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 |
---|---|---|---|
JP56142042A JPS5844369A (ja) | 1981-09-09 | 1981-09-09 | Fm−cwレ−ダ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56142042A JPS5844369A (ja) | 1981-09-09 | 1981-09-09 | Fm−cwレ−ダ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5844369A JPS5844369A (ja) | 1983-03-15 |
JPH0128914B2 true JPH0128914B2 (enrdf_load_stackoverflow) | 1989-06-06 |
Family
ID=15306028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56142042A Granted JPS5844369A (ja) | 1981-09-09 | 1981-09-09 | Fm−cwレ−ダ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5844369A (enrdf_load_stackoverflow) |
-
1981
- 1981-09-09 JP JP56142042A patent/JPS5844369A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5844369A (ja) | 1983-03-15 |
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