Title :
A design method using a set of objective functions for near-perfect reconstruction filter bank based transmultiplexer for onboard transparent processor
Author :
Mishra, Nitesh ; Mishra, P. ; Shah, Hemal ; Banik, A.
Author_Institution :
Space Applic. Centre, Indian Space Res. Organ. (ISRO), Ahmedabad, India
Abstract :
This paper introduces a new set of objective functions and presents a design flow for near-perfect reconstruction (NPR) analysis and synthesis filter-bank based transmultiplexer. The effects of design constraints in terms of filter order and coefficients quantization are analysed for their effect on overall response and cross-channel interference; this leading to an optimum choice of the prototype filter with an iterative process. Using this method, a 16-channel transmultiplexer was designed for an onboard transparent processor to suit the requirement of multi-channel satellite communication.
Keywords :
channel bank filters; interpolation; iterative methods; quantisation (signal); radiofrequency interference; satellite communication; transmultiplexing; M-channel decimation filter banks; M-channel interpolation filter banks; coefficients quantization; cross-channel interference; design method; filter order; iterative process; multichannel satellite communication; near-perfect reconstruction analysis filter bank based transmultiplexer; near-perfect reconstruction synthesis filter bank based transmultiplexer; objective functions; onboard transparent processor; subband signal processing; Bandwidth; Filter banks; Filtering theory; Finite impulse response filters; Prototypes; Quantization (signal); Cross-channel interference; near-perfect reconstruction filter bank; prototype filter design; transmultiplexer; transparent processor;
Conference_Titel :
Signal Processing and Communication (ICSC), 2013 International Conference on
Conference_Location :
Noida
Print_ISBN :
978-1-4799-1605-4
DOI :
10.1109/ICSPCom.2013.6719796
