摘要
运用透明带内导音（ＴＴＩＢ）和前馈信号再生（ＦＦＳＲ）技术，设计了一种新型高质量数传ＭＯＤＥＭ，采用高速数字信号处理芯片（ＤＳＰ）ＴＭＳ３２０完成软硬件设计，实现ＴＴＩＢ与ＦＦＳＲ技术［１］，使ＭＯＤＥＭ具有抗信道衰落及抑制收发频率漂移等性能，而且结构简单，与电台采用音频接口，极大地方便了数传ＭＯＤＥＭ的推广与应用。
A novel SW-SSB data radio MODEM is worked out by incorporating the transparent tone-in-band(TTIB)and feed forward signal regeneration(FFSR)techniques,which employs digital signal processing(DSP)circuit TMS320 to complete the design of the software and hardware.The MODEM features combating the channel's fading,eliminating the frequency offset of the transmitter and receiver local oscillators as well as the structural simplicity.The use of audio interface with the radio makes it very easy to extend the application of this data radio MODEM.
出处
《桂林电子工业学院学报》
1995年第1期24-30,共7页
Journal of Guilin Institute of Electronic Technology
