Title:
RADIO COMMUNICATION JAMMING SYSTEM
Document Type and Number:
Japanese Patent JP3640882
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that, in a conventional system, a jamming target cannot be selected when the jamming target cannot be acquired because the jamming target is acquired from other systems and, to solve the problem that, in another conventional system, a jamming target cannot be selected when the sound content in received space radio waves cannot be analyzed because the jamming target is selected on the basis of the content.
SOLUTION: The radio-communication jamming system is constituted of a direction measuring means 2 used to measure the arrival direction of received waves, a direction judgment means 3 used to extract a frequency in the same arrival direction, a communication-system judgment means 4 by which a frequency having the relations of a response with a call on the basis of the receiving time of the frequency in the same arrival direction is judged to be a communication system frequency so as to extract information required for a hamming operation, and a jamming radio wave emission means 5 which emits jamming radio waves to the communication system frequency on the basis of the information required for the jamming operation.
Inventors:
Hideyuki Sano
Application Number:
JP2000384252A
Publication Date:
April 20, 2005
Filing Date:
December 18, 2000
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01R29/08; G01S7/38; H04K3/00; (IPC1-7): H04K3/00; G01S7/38
Domestic Patent References:
| JP2000124878A | ||||
| JP2000295203A |
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Konobu Kato
Previous Patent: DRIVING CIRCUIT OF LIQUID CRYSTAL DISPLAY
Next Patent: FUEL HEATING HEATER CONTROL METHOD BASED ON INPUT ELECTRIC ENERGY
Next Patent: FUEL HEATING HEATER CONTROL METHOD BASED ON INPUT ELECTRIC ENERGY