WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1980002325) A METHOD IN A TRACKING RADAR TO ATTAIN A LARGE UNAMBIGUOUS RANGE FOR DETECTED TARGETS BY MEANS OF RADAR PULSES WITH HIGH REPETITION FREQUENCY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002325    International Application No.:    PCT/SE1980/000122
Publication Date: 30.10.1980 International Filing Date: 23.04.1980
IPC:
G01S 13/24 (2006.01), G01S 13/70 (2006.01)
Applicants:
Inventors:
Priority Data:
7903653 25.04.1979 SE
Title (EN) A METHOD IN A TRACKING RADAR TO ATTAIN A LARGE UNAMBIGUOUS RANGE FOR DETECTED TARGETS BY MEANS OF RADAR PULSES WITH HIGH REPETITION FREQUENCY
(FR) METHODE DANS UN RADAR DE PISTAGE POUR ATTEINDRE UNE GRANDE PORTEE PRECISE POUR DES CIBLES DETECTEES AU MOYEN D"IMPULSIONS RADAR AVEC UNE HAUTE FREQUENCE DE REPETITION
Abstract: front page image
(EN)Method for a tracking radar which transmits radar pulses towards a certain target whose target range from the beginning is known. The carrier frequency of the transmitted radar pulses are during the target tracking varied from one pulse to the next following, so that a pulse series including a certain number M of carrier frequencies are created. The number M is chosen with reference to the continuously measured target range and as long as this is less than a certain value. If the target range exceeds this value the number M of carrier frequencies is changed and a new pulse series including this new number is transmitted. The unambiguous range to the followed target becomes dependent on the frequency repetition frequency in the transmitted pulse series instead of the PRF of the radar.
(FR)Methode pour un radar de pistage qui transmet des impulsions radar vers une cible dont la porte est connue des le depart. La frequence porteuse des impulsions radar transmises varie d"une impulsion a l"autre pendant le pistage de la cible, de sorte telle qu"une serie d"impulsions ayant un certain nombre de frequences porteuses sont produites. Le nombre M est choisi en reference a la portee de la cible mesuree continuellement et aussi longtemps qu"elle est inferieure a une certaine valeur. Si la portee de la cible depasse cette valeur le nombre M de frequences porteuses est change et une nouvelle serie d"impulsions comprenant ce nouveau nombre est transmise. La portee precise ou sans ambiguite a la cible suivie devient dependante de la frequence de repetition de frequence dans la serie d"impulsions transmise au lieu de la PRF (frequence de repetition d"impulsions) du radar.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)