Title:
DISTURBING EQUIPMENT FOR DIRECT SPREAD COMMUNICATION
Document Type and Number:
Japanese Patent JP2596342
Kind Code:
B2
Abstract:
PURPOSE: To enable communication disturbance of a direct spread communica tion waves which is actually difficult by means of conventional disturbing devices.
CONSTITUTION: An objective direct spread communication wave is received, a primary storage device 3 stores the wave at first and a frequency analyzer 4 measures a center frequency fo and a signal generator 5 generates a continuous wave of the same frequency as the center frequency fo, a phase changeover device 6 switches a high frequency phase at random and the switched signal is sent to generate a simulating fading at the reception point of the objective communication wave to attain the disturbance of the direct spread communication wave. The disturbance of the direct spread communication wave is attained almost by the same disturbing power as that of a conventional communication disturbance equipment for AM, FM disturbance waves.
Inventors:
Takataka Suzuki
Application Number:
JP29521893A
Publication Date:
April 02, 1997
Filing Date:
November 25, 1993
Export Citation:
Assignee:
NEC
International Classes:
H04K3/00; H04B1/707; (IPC1-7): H04B1/707; H04K3/00
Domestic Patent References:
| JP591088A |
Attorney, Agent or Firm:
Shinsuke Honjo