Title:
信号処理装置及び信号処理方法
Document Type and Number:
Japanese Patent JP2009519448
Kind Code:
A
Abstract:
Radiolocalization receiver for a satellite radiolocalization system like GPs, Galileo or the like, including a staged correlation and accumulation unit, in which the correlation data is biased in order to be to always non-negative. Thanks to this feature, the accumulated data grow monotonically during the accumulation. Overflow rate of a first correlation stage (100, 150-153) is scaled down respect to the rate of the input data. Thus the higher correlation stages (200, 154-158) can be used in multiplex. The bit-flip rate in memories is very low, with an effective reduction of dynamic power consumption. The logic structure of the accumulator is also simplified by the invention, thus further savings in silicon space and power are possible.
Inventors:
Young Phil
Application Number:
JP2008544974A
Publication Date:
May 14, 2009
Filing Date:
December 08, 2006
Export Citation:
Assignee:
Nemericus Societe Anonym
International Classes:
G01S19/32; G01S19/30; G01S19/33; G01S19/35
Domestic Patent References:
| JP2001189681A | 2001-07-10 | |||
| JPH05256927A | 1993-10-08 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Okumura Yoshimichi
Blacksmith
Okumura Yoshimichi
Blacksmith