Realization of High-effective Filter of DVB-T Receiver Based on FRM
Luo Wen-yu · Video Engineering · 2008
In allusion to the requirements of efficient filtering in digital down converter of DVB-T receiver,a design of Fre- quency Response Masking(FRM)filter based on FPGA is proposed.In the proposed design,the Distributed Arithmetic(DA)is used to transform the addition and multiplication into the operation of table lookup,and the partition method of DA is used to solve the problems in large look-up tables.The testing results show that the design is correct,reliable,and can satisfy the need of design.