| 1. |
- Öwall, Viktor, et al.
(author)
-
A GSM speech coder implemented on a customized processor architecture
- 1993
-
In: ISCAS '93, 1993 IEEE International Symposium on Circuits and Systems. - 0780312813 ; , s. 235-238
-
Conference paper (peer-reviewed)abstract
- - A GSM speech coder has been implemented on a custom DSP using a system for design of arbitrary processor architectures. The speech coder has been generated from a high level description to netlist. The design system allows implementation in various technologies and a netlist for Plessey gate array has been generated. Due to the rigid specification of the speech coder, the advantages of a custom DSP can not be fully utilized and a result in clock cycles and ROM storage comparable to a standard DSP is achieved.
|
|
| 2. |
- Öwall, Viktor, et al.
(author)
-
Custom DSP Design of a GSM Speech Coder
- 1995
-
In: Journal of VLSI Signal Processing. - 0922-5773. ; 11:3, s. 213-228
-
Journal article (peer-reviewed)abstract
- The GSM speech coder for digital mobile telephones has been designed on a custom DSP using an environment for development of arbitrary processor architectures. A netlist of the speech coder has been generated from a high level description in a presented design environment. Improvement of the performance both by modifying the high level description and by hand optimization of the microcode is discussed. Advantages of a user interactive system were stepwise refinement leads to a competitive result is thus demonstrated. Simulation has been performed at algorithm, microcode, and transistor level for consistency check. To avoid dependency of a specific vendor the design environment allows implementation in various technologies and a netlist for a Plessey gate array has been generated as an example.
|
|
| 3. |
|
|
| 4. |
|
|
