Li Lei-da, Guo Bao-long, Biao Jin-feng. Spatial Domain Image Watermarking Scheme Robust to Geometric Attacks Based on Odd-Even Quantization[J]. Journal of Electronics & Information Technology, 2009, 31(1): 134-138. doi: 10.3724/SP.J.1146.2007.01043
Citation:
Zhang Guochun, Zhou Baihua, Zhang Zhang, Yun Xiaohua. STUDY OF Ka-BAND GUNN PHASE-LOCKED SOURCE[J]. Journal of Electronics & Information Technology, 1996, 18(4): 435-438.
Li Lei-da, Guo Bao-long, Biao Jin-feng. Spatial Domain Image Watermarking Scheme Robust to Geometric Attacks Based on Odd-Even Quantization[J]. Journal of Electronics & Information Technology, 2009, 31(1): 134-138. doi: 10.3724/SP.J.1146.2007.01043
Citation:
Zhang Guochun, Zhou Baihua, Zhang Zhang, Yun Xiaohua. STUDY OF Ka-BAND GUNN PHASE-LOCKED SOURCE[J]. Journal of Electronics & Information Technology, 1996, 18(4): 435-438.
A Ka-band phase-locked source (PLS) is analyzed and studied in detail. The stability of the millimeter PLL and the theory of phase compensation are discussed. In the practical scheme, the double PLL is applied, and the key components, such as the stable-cavity bias-tuned VCO, high-order multiplier and low phase-noise microwave PLL are developed. The SMT and high density assembly assembly technology are utilized in structure. Finally the millimeter PLS possesses features of miniaturization and low phase noise and high frequency stability.
Carlstron J E. IEEE Trans on MTT. 1985, MTT-33(7): 127-129.[2]Bester M. International Journal of Infrared and Millimeter Waves. 1986, 7(1): 206-208.[3]刘绍球等.控制系统工程,北京,电子工业出版社,1985, 154-167.[4]Li Dunfu, Yun Xiaohua. Stability for 8mm Phase Locked Souce, International Conference on Milimeter Wave and Far-infrared Technology. Beijing: June 19-23, 1989, 606-609.[5]Robins W P. Phase Noise in Signal Sources, Pereprinlisinlis Ltd, London: UK. 1982, 93-133.
Li Lei-da, Guo Bao-long, Biao Jin-feng. Spatial Domain Image Watermarking Scheme Robust to Geometric Attacks Based on Odd-Even Quantization[J]. Journal of Electronics & Information Technology, 2009, 31(1): 134-138. doi: 10.3724/SP.J.1146.2007.01043
Li Lei-da, Guo Bao-long, Biao Jin-feng. Spatial Domain Image Watermarking Scheme Robust to Geometric Attacks Based on Odd-Even Quantization[J]. Journal of Electronics & Information Technology, 2009, 31(1): 134-138. doi: 10.3724/SP.J.1146.2007.01043