电波科学学报2012，Vol.27Issue(4)：760-765,6.
低成本直接射频正交调制无线发射机的新设计
Low cost new design of direct radio orthogonal modulation wireless transmitter
摘要
Abstract
A new design of field programmable gate array （FPGA） direct radio or- thogonal modulation wireless transmitter is presented, which overcomes the com- plex structure of the traditional orthogonal modulation scheme by dropping the dig- ital-to-analogy converter （DAC） and mixer which are necessary between the base- band digital signal processor and radio frequency section in the traditional orthogo- nal modulation method, making the base-band digital signal processor directly con- necting to the radio orthogonal modulator. The new software realizes and digitalizes the traditional wireless transmitter as far as possible. Tests of the wireless trans- mitting system that is fabricated according to the new design show the bit error ra- tio （BER） of the new design reaches the BER level of the traditional orthogonal modulation scheme. But the new design need no DAC or mixer that are necessary in the tradition method, which simplifies the system and lowers the cost.关键词
直接射频调制/现场可编程门阵列/正交相移键控/正交调制/数字频率控制锁相环Key words
direct radio modulation/FPGA/QPSK/orthogonal modulation/num-ber controlled oseillator(NCO)分类
信息技术与安全科学引用本文复制引用
陈杰,尹应增..低成本直接射频正交调制无线发射机的新设计[J].电波科学学报,2012,27(4):760-765,6.基金项目
国家自然科学基金项目 （）
