GB1501111A - Signal discriminator - Google Patents
Signal discriminatorInfo
- Publication number
- GB1501111A GB1501111A GB1578674A GB1578674A GB1501111A GB 1501111 A GB1501111 A GB 1501111A GB 1578674 A GB1578674 A GB 1578674A GB 1578674 A GB1578674 A GB 1578674A GB 1501111 A GB1501111 A GB 1501111A
- Authority
- GB
- United Kingdom
- Prior art keywords
- binary
- signal
- gate
- signals
- 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.)
- Expired
Links
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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/043—Receivers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Noise Elimination (AREA)
Abstract
1501111 Listening arrays DEFENCE SECRETARY OF STATE FOR 3 April 1975 [9 April 1974] 15786/74 Heading G1G A signal discriminator for a listening array comprises a unanimity circuit receiving a plurality of input signals and affording a binary 1 output signal whenever the input signals are all simultaneously of the same sense and otherwise a binary O signal, and computing means deriving from the binary signals output signal indicating signal detection if the rate of occurrence of binary 1 signals is high enough to satisfy a predetermined probability and an output signal indicating no signal detection if that rate is lower. The invention is particularly useful for assessing whether there is a wanted signal in a given direction when noise is present. In the embodiment, the sense is signal polarity and the unanimity circuit comprises comparators 1 each affording a binary O output if its (analogue) input is positive and a binary 1 if negative, AND gate 2, NOR gate 3 and OR gate 4; the computing means operates to detect specified inequalities and a flow diagram therefore is given, Fig. 2, (not shown).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1578674A GB1501111A (en) | 1974-04-09 | 1974-04-09 | Signal discriminator |
| CA000224005A CA1225159A (en) | 1974-04-09 | 1975-04-08 | Signal discriminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1578674A GB1501111A (en) | 1974-04-09 | 1974-04-09 | Signal discriminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1501111A true GB1501111A (en) | 1978-02-15 |
Family
ID=10065445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1578674A Expired GB1501111A (en) | 1974-04-09 | 1974-04-09 | Signal discriminator |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1225159A (en) |
| GB (1) | GB1501111A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0556549A1 (en) * | 1992-02-20 | 1993-08-25 | Motorola, Inc. | A discriminator device |
| CN112255618A (en) * | 2020-09-29 | 2021-01-22 | 中国兵器工业集团第二一四研究所苏州研发中心 | Pixel-level time discrimination circuit |
-
1974
- 1974-04-09 GB GB1578674A patent/GB1501111A/en not_active Expired
-
1975
- 1975-04-08 CA CA000224005A patent/CA1225159A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0556549A1 (en) * | 1992-02-20 | 1993-08-25 | Motorola, Inc. | A discriminator device |
| CN112255618A (en) * | 2020-09-29 | 2021-01-22 | 中国兵器工业集团第二一四研究所苏州研发中心 | Pixel-level time discrimination circuit |
| CN112255618B (en) * | 2020-09-29 | 2024-01-05 | 中国兵器工业集团第二一四研究所苏州研发中心 | Pixel-level moment identification circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1225159A (en) | 1987-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |