DE730128C - Method for determining the side of a double-frame direction finder - Google Patents
Method for determining the side of a double-frame direction finderInfo
- Publication number
- DE730128C DE730128C DET47189D DET0047189D DE730128C DE 730128 C DE730128 C DE 730128C DE T47189 D DET47189 D DE T47189D DE T0047189 D DET0047189 D DE T0047189D DE 730128 C DE730128 C DE 730128C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- double
- cardioid
- determining
- direction finder
- 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
- G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
Verfahren zur Seitenbestimmung bei einem Doppelrahmenpeiler Die Erfindung betrifft ein Verfahren zur Seitenbestimmung bei einem an sich hekannten Doppelrahmenpeiler, der aus zwei in parallelen Ebenen liegenden gegengeschalteten Einzelrahmen besteht. Bei der normalen Peilung mit Einfachrahmen wird die Seitenbestimmung meist durch Kardioidenbildung vorgenommen. Bei Vorhandensein von Nachteffekt sind jedoch Einfachpeilrahmen zur Peilung nicht mehr ohne weiteres anwendbar.Method for determining the side of a double-frame direction finder The invention relates to a method for determining the side of a known double-frame direction finder, which consists of two opposing single frames lying in parallel planes. With normal bearing with a single frame, the determination of the side is usually done by Cardioid formation made. In the presence of night effects, however, single bearing frames are used no longer readily applicable to direction finding.
Die Erfindung fußt auf der Erkenntnis, daß die einzelnen Rahmen des eingangs beschriebenen Doppelrahmenpeilers nach Einstellung des ganzen Antennensystems in ein nachteffektfreies Peilminimum von horizontal polarisierten Komponenten der gepeilten Strahlung nicht erregt werden. Das gleiche gilt natürlich auch für einen zusätzlichen Rahmen, der parallel zu den Einzelrahmen liegt und mit diesen mechanisch gekuppelt ist. The invention is based on the knowledge that the individual framework of the Double frame direction finder described at the beginning after setting the entire antenna system into a night-time effect-free bearing minimum of horizontally polarized components of the directional radiation are not excited. The same goes for you, of course additional frame that is parallel to the individual frames and mechanically with them is coupled.
Dieser Umstand wird erilndungsgemäß in der Weise zur Seitenbestimmung ausgenutzt, daß ein parallel zu den Einzelrahmen des Doppelrahmenpeilers liegender zusätzlicher Rahmen oider ein Einzelrahmen .allein bzw. beide Einzelrahmen in Parallelschaltung nach Einstellung des Doppelrahmens in ein nachteffektfreies Minimum zur Kardioidenbildung mit einer ungerichteten Antenne zusammengeschaltet werden. Durch Umpolung der Empfangs spannung einer der Antennen kann man in bekannter Weise die Lage von Maximum und Minimum der Kardioiden vertauschen und aus dem Amplitudenunterschied der Empfangssp,annung in den beiden Lagen der Kardioide auf die Peilseite schließen. According to the present invention, this circumstance is used to determine the side exploited that one lying parallel to the single frame of the double frame direction finder Additional frame or a single frame. Alone or both single frames in parallel after setting the double frame in a night-effect-free minimum for cardioid formation can be interconnected with an omnidirectional antenna. By reversing the polarity of the reception voltage of one of the antennas you can determine the position of maximum and in a known manner Swap the minimum of the cardioids and use the amplitude difference of the received voltage close to the bearing side in both cardioid positions.
Da die beiden zur Peilung benutzten Rahmen bzw. der Hilfsrahmen, wie bereits erwähnt, bei Einstellung des Doppelrahmens in eines der nachteffektfreien Minima für sich im Maximum des vertikal polarisierten Feldes stehen und durch horizontal polarisierte Feldkomponenten nicht beeinflußt werden, wird der Seitenbestimmungsvorgang durch den Nachteffekt nicht beeinflußt. Since the two frames used for bearing or the subframe, as already mentioned, when setting the double frame in one of the nocturnal effects Minima stand for themselves in the maximum of the vertically polarized field and through horizontally polarized field components are not affected, the side determination process not influenced by the night effect.
An Stelle einer wn,gerichteten Antenne kann man auch den Vertikalantenneneffekt eines oder beider Einzelrahmen verwenden, indem man z. B. den Rahmen mit einer zur Erde führenden Mittelanzapfung versieht. Instead of a wn, directional antenna, one can also use the vertical antenna effect use one or both single frames by z. B. the frame with a for Earth leading center tap.
Ob zur Umschaltung der Kardioide die Empfangsspannung des Richtsystems oder der ungerichteten Antenne umgepolt wird, ist gleichgültig. Es kann auf die Umpolung auch verzichtet werden und an Stelle davon leine mechanische Drehung des Peilers um j 80G erfolgen. Whether to switch the cardioids the receiving voltage of the straightening system or the polarity of the omnidirectional antenna is reversed, does not matter. It can be on the Polarity reversal can also be dispensed with and instead of it a mechanical rotation of the Direction finder at j 80G.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET47189D DE730128C (en) | 1936-07-16 | 1936-07-16 | Method for determining the side of a double-frame direction finder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET47189D DE730128C (en) | 1936-07-16 | 1936-07-16 | Method for determining the side of a double-frame direction finder |
Publications (1)
Publication Number | Publication Date |
---|---|
DE730128C true DE730128C (en) | 1943-01-07 |
Family
ID=7562547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET47189D Expired DE730128C (en) | 1936-07-16 | 1936-07-16 | Method for determining the side of a double-frame direction finder |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE730128C (en) |
-
1936
- 1936-07-16 DE DET47189D patent/DE730128C/en not_active Expired
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