JPS5680916A - Interpolating filter for sampled value - Google Patents
Interpolating filter for sampled valueInfo
- Publication number
- JPS5680916A JPS5680916A JP15833279A JP15833279A JPS5680916A JP S5680916 A JPS5680916 A JP S5680916A JP 15833279 A JP15833279 A JP 15833279A JP 15833279 A JP15833279 A JP 15833279A JP S5680916 A JPS5680916 A JP S5680916A
- Authority
- JP
- Japan
- Prior art keywords
- inputted
- adder
- multipliers
- outputs
- supplied
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/04—Recursive filters
- H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
- H03H17/0427—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
- H03H17/0438—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
- H03H17/0444—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2218/00—Indexing scheme relating to details of digital filters
- H03H2218/06—Multiple-input, multiple-output [MIMO]; Multiple-input, single-output [MISO]
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To reduce the structure of hardware while decreasing the frequency of multiplication by using a recursive digital filter having the transfer relation satisfying specific conditions. CONSTITUTION:Multichannel, e.g. four-channel multiplexed data of sampling rate fSL is inputted to input terminal 1. The input data is supplied to adder 30, whose output is inputted to delay element 50 and multiplier 70. Outputs of delay elements 50-56 are inputted to multipliers 71-77 and those of elements 51, 53, 55, and 57 are inputted to multipliers 60-63, whose outputs are inputted to adder 33 and then supplied to adder 30. Output data of multipliers 70, 72, 74, and 76 are inputted to adder 31, and those of multipliers 71, 73, 75, and 77 to adder 32. Outputs of adders 31 and 32 are both inputted to selecting circuits 80 and 81 and with a timing signal from timing signal generating circuit 9, input signals are selected in time-division mode. Then, two-channel multiplexed signals of sampling frequency fSH=2fSL appear at output terminals 21 and 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15833279A JPS5680916A (en) | 1979-12-06 | 1979-12-06 | Interpolating filter for sampled value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15833279A JPS5680916A (en) | 1979-12-06 | 1979-12-06 | Interpolating filter for sampled value |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5680916A true JPS5680916A (en) | 1981-07-02 |
| JPS6320047B2 JPS6320047B2 (en) | 1988-04-26 |
Family
ID=15669321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15833279A Granted JPS5680916A (en) | 1979-12-06 | 1979-12-06 | Interpolating filter for sampled value |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5680916A (en) |
-
1979
- 1979-12-06 JP JP15833279A patent/JPS5680916A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6320047B2 (en) | 1988-04-26 |
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