GB2227858B - Signal analysing device - Google Patents

Signal analysing device

Info

Publication number
GB2227858B
GB2227858B GB8923500A GB8923500A GB2227858B GB 2227858 B GB2227858 B GB 2227858B GB 8923500 A GB8923500 A GB 8923500A GB 8923500 A GB8923500 A GB 8923500A GB 2227858 B GB2227858 B GB 2227858B
Authority
GB
United Kingdom
Prior art keywords
analysing device
signal analysing
signal
analysing
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 - Lifetime
Application number
GB8923500A
Other versions
GB2227858A (en
GB8923500D0 (en
Inventor
Jonathon Alexander Sk Pitchard
Andrew John Baynham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB8923500D0 publication Critical patent/GB8923500D0/en
Publication of GB2227858A publication Critical patent/GB2227858A/en
Application granted granted Critical
Publication of GB2227858B publication Critical patent/GB2227858B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
GB8923500A 1988-11-15 1989-10-18 Signal analysing device Expired - Lifetime GB2227858B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888826711A GB8826711D0 (en) 1988-11-15 1988-11-15 Signal analysis device

Publications (3)

Publication Number Publication Date
GB8923500D0 GB8923500D0 (en) 1989-12-06
GB2227858A GB2227858A (en) 1990-08-08
GB2227858B true GB2227858B (en) 1992-08-05

Family

ID=10646895

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888826711A Pending GB8826711D0 (en) 1988-11-15 1988-11-15 Signal analysis device
GB8923500A Expired - Lifetime GB2227858B (en) 1988-11-15 1989-10-18 Signal analysing device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888826711A Pending GB8826711D0 (en) 1988-11-15 1988-11-15 Signal analysis device

Country Status (1)

Country Link
GB (2) GB8826711D0 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363100A (en) * 1980-10-28 1982-12-07 Northern Telecom Limited Detection of tones in sampled signals
GB2190221A (en) * 1986-05-08 1987-11-11 Secr Defence Signal transforming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363100A (en) * 1980-10-28 1982-12-07 Northern Telecom Limited Detection of tones in sampled signals
GB2190221A (en) * 1986-05-08 1987-11-11 Secr Defence Signal transforming device

Also Published As

Publication number Publication date
GB8826711D0 (en) 1988-12-21
GB2227858A (en) 1990-08-08
GB8923500D0 (en) 1989-12-06

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Legal Events

Date Code Title Description
711B Application made for correction of error (sect. 117/77)
711H Case decided by the comptr. ** correction allowed (sect. 117/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941018