The design of an FPGA( field programmable gate array) based programmable SONET (synchronous optical network) OC-192 10 Gbit/s PRBS (pseudo-random binary sequence) generator and a bit interleaved polarity 8 (BI...The design of an FPGA( field programmable gate array) based programmable SONET (synchronous optical network) OC-192 10 Gbit/s PRBS (pseudo-random binary sequence) generator and a bit interleaved polarity 8 (BIP-8) error detector is presented. Implemented in a parallel feedback configuration, this tester features PRBS generation of sequences with bit lengths of 2^7 - 1,2^10- 1,2^15 - 1,2^23 - land 2^31 - 1 for up to 10 Gbit/s applications with a 10 Gbit/s optical transceiver, via the SFI-4 (OC-192 serdes-framer interface). In the OC-192 frame alignment circuit, a dichotomy search algorithm logic which performs the functions of word alignment and STM-64/OC192 de-frame speeds up the frame sync logic and reduces circuit complexity greatly. The system can be used as a low cost tester to evaluate the performance of OC-192 devices and components, taking the replacement of precious commercial PRBS testers.展开更多
针对超高速率的光传送网络(Optical Transport Network,OTN)数据信号,在研究光传送网络帧结构的基础上,提出了一种适合高速率、大位宽的成帧器处理电路,将48比特的FAS信号分为两部分进行比较,第一部分为64个24比特比较器,第二部分为一...针对超高速率的光传送网络(Optical Transport Network,OTN)数据信号,在研究光传送网络帧结构的基础上,提出了一种适合高速率、大位宽的成帧器处理电路,将48比特的FAS信号分为两部分进行比较,第一部分为64个24比特比较器,第二部分为一个24比特比较器。将电路的规模降低了一半,提高了电路的处理速率。通过软件仿真后,使用综合工具综合的结果显示,电路处理速率可达到235.74MHz。展开更多
硅基液晶(liquid crystal on silicon,LCoS)微显示芯片是一种结合了CMOS芯片和液晶显示的硅基微显示技术,具有体积小、分辨率高和帧率高等特点,可以广泛应用于便携激光投影、AR眼镜、车载HUD和智能制造等领域。介绍了LCoS微显示芯片的...硅基液晶(liquid crystal on silicon,LCoS)微显示芯片是一种结合了CMOS芯片和液晶显示的硅基微显示技术,具有体积小、分辨率高和帧率高等特点,可以广泛应用于便携激光投影、AR眼镜、车载HUD和智能制造等领域。介绍了LCoS微显示芯片的结构、关键技术和驱动方式,并提出了一种高分辨率、高帧率的LCoS显示芯片设计方法,采用模拟像素驱动、高速数据接口和时序彩色显示方案,分辨率达到了1080 P,刷新帧率达到了360 HZ。展开更多
文摘The design of an FPGA( field programmable gate array) based programmable SONET (synchronous optical network) OC-192 10 Gbit/s PRBS (pseudo-random binary sequence) generator and a bit interleaved polarity 8 (BIP-8) error detector is presented. Implemented in a parallel feedback configuration, this tester features PRBS generation of sequences with bit lengths of 2^7 - 1,2^10- 1,2^15 - 1,2^23 - land 2^31 - 1 for up to 10 Gbit/s applications with a 10 Gbit/s optical transceiver, via the SFI-4 (OC-192 serdes-framer interface). In the OC-192 frame alignment circuit, a dichotomy search algorithm logic which performs the functions of word alignment and STM-64/OC192 de-frame speeds up the frame sync logic and reduces circuit complexity greatly. The system can be used as a low cost tester to evaluate the performance of OC-192 devices and components, taking the replacement of precious commercial PRBS testers.
文摘针对超高速率的光传送网络(Optical Transport Network,OTN)数据信号,在研究光传送网络帧结构的基础上,提出了一种适合高速率、大位宽的成帧器处理电路,将48比特的FAS信号分为两部分进行比较,第一部分为64个24比特比较器,第二部分为一个24比特比较器。将电路的规模降低了一半,提高了电路的处理速率。通过软件仿真后,使用综合工具综合的结果显示,电路处理速率可达到235.74MHz。