JPS648953A - Mti pulse doppler apparatus - Google Patents
Mti pulse doppler apparatusInfo
- Publication number
- JPS648953A JPS648953A JP16322487A JP16322487A JPS648953A JP S648953 A JPS648953 A JP S648953A JP 16322487 A JP16322487 A JP 16322487A JP 16322487 A JP16322487 A JP 16322487A JP S648953 A JPS648953 A JP S648953A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- inputted
- shift
- echo
- echo 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.)
- Granted
Links
- 238000005070 sampling Methods 0.000 abstract 2
- 239000000523 sample Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
PURPOSE:To erase ground clutter moving while gradually changing in its shape, by storing an input echo signal to compare the same with the succeeding echo signal to alter a sampling point row corresponding to timewise shift and erasing a fixed target from the signal corrected in shift. CONSTITUTION:The ultrasonic wave reflected from the interior of an object to be examined is received by a probe 4 and the receiving signal is phased and added in a receiving beam former 5. The output signal of a band filter 6 is brought to a signal having an almost flat level by a variable mu-factor amplifier 7 and converted to a digital signal by an AD converter 9 to be inputted to an echo data file 10 and stored in separation into small sections. An echo signal 20 and a data of time shift 24 are inputted to a DSP 11 and one data sampling point is moved on the basis of the time shift 4 while interpolated before and behind so that a time width coincides and corrected. After correction, MTI processing is performed in the DSP 11 to erase ground clutter between respective times. The echo signal is inputted to a DSC 14 to be converted to a television format signal which is, in turn, sent to a display apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16322487A JPS648953A (en) | 1987-06-30 | 1987-06-30 | Mti pulse doppler apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16322487A JPS648953A (en) | 1987-06-30 | 1987-06-30 | Mti pulse doppler apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648953A true JPS648953A (en) | 1989-01-12 |
| JPH0327209B2 JPH0327209B2 (en) | 1991-04-15 |
Family
ID=15769677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16322487A Granted JPS648953A (en) | 1987-06-30 | 1987-06-30 | Mti pulse doppler apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648953A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH042336A (en) * | 1989-11-27 | 1992-01-07 | Acoustic Imaging Technol Corp | Ultrasonic doppler flow measurement and imaging device |
| US6256884B1 (en) | 1998-07-06 | 2001-07-10 | Ngk Insulators, Ltd. | Nozzle for liquid injection device and method of producing the same |
-
1987
- 1987-06-30 JP JP16322487A patent/JPS648953A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH042336A (en) * | 1989-11-27 | 1992-01-07 | Acoustic Imaging Technol Corp | Ultrasonic doppler flow measurement and imaging device |
| US6256884B1 (en) | 1998-07-06 | 2001-07-10 | Ngk Insulators, Ltd. | Nozzle for liquid injection device and method of producing the same |
| US6585175B2 (en) | 1998-07-06 | 2003-07-01 | Ngk Insulators, Ltd. | Nozzle for liquid injection device and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0327209B2 (en) | 1991-04-15 |
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