11月22-23日,“花开不败·东方不败—25秋冬纽约时装周JZ x FURMARK新品品鉴会”于成都、杭州双城接续上演。此次活动由国际毛皮协会IFF与安正时尚集团旗下高端女装品牌JZ玖姿联合主办,中国时尚产业创新传播力量IP-时尚背后的秘密?...11月22-23日,“花开不败·东方不败—25秋冬纽约时装周JZ x FURMARK新品品鉴会”于成都、杭州双城接续上演。此次活动由国际毛皮协会IFF与安正时尚集团旗下高端女装品牌JZ玖姿联合主办,中国时尚产业创新传播力量IP-时尚背后的秘密??策划呈现,标志着此项战略合作圆满收官。继上海首发后,JZ玖姿2025秋冬纽约时装周秀场同款在“活力之都”成都与“电商之都”杭州的再度亮相,不仅是璀璨秀场与真实生活的交融,更是天然皮草可持续时尚内核的一次纵深表述与市场下沉。展开更多
对于雷达与IFF(Identification Friend or Foe)背靠背配置时的关联问题,提出了关联算法.主要包括雷达航迹与IFF点迹的时间对准、判别函数构造、关联判决准则选择和关联判决门限设置等,并讨论了多义性问题.4种典型情况下的仿真结果表明,...对于雷达与IFF(Identification Friend or Foe)背靠背配置时的关联问题,提出了关联算法.主要包括雷达航迹与IFF点迹的时间对准、判别函数构造、关联判决准则选择和关联判决门限设置等,并讨论了多义性问题.4种典型情况下的仿真结果表明,目标间隔与目标到雷达距离之比越大时,关联效果越好;目标交叉时,离交叉点越近,关联效果越差;目标机动阶段时间对准采用雷达航迹平滑的关联效果优于航迹预测,其它情况下采用两种时间对准方法的关联效果相近;在NED(North EastDown)坐标系和极坐标系下的关联效果相近;n/m逻辑应选择2/3或3/4,以同时保证对友方目标的漏关联概率和不明目标的误关联概率都较低.展开更多
为了在非合作条件下对敌我识别(Identification Friend or Foe,IFF)信号进行实时检测,分析IFF应答信号的特征,提出IFF应答信号实时检测技术,对其中基于多相滤波的正交变换、包络检波及脉冲参数精确测量等关键技术进行了分析,并在现场可...为了在非合作条件下对敌我识别(Identification Friend or Foe,IFF)信号进行实时检测,分析IFF应答信号的特征,提出IFF应答信号实时检测技术,对其中基于多相滤波的正交变换、包络检波及脉冲参数精确测量等关键技术进行了分析,并在现场可编程门阵列(FPGA)中进行了实现及测试,证明该技术完全满足工程实现的需求。展开更多
The problem of identification of friend-or-foe aircraft in the actual application condition is addressed.A hybrid algorithm combining fuzzy neutral network with probability factor（FNNP）,multi-level fuzzy comprehensi...The problem of identification of friend-or-foe aircraft in the actual application condition is addressed.A hybrid algorithm combining fuzzy neutral network with probability factor（FNNP）,multi-level fuzzy comprehensive evaluation and the DempsterShafer（D-S） theory is proposed.This hybrid algorithm constructs a complete process from generating the fuzzy database to the final identification,realizes the identification of friend-or-foe automatically if the training samples or expert’s experience can be obtained,and reduces the effect of uncertainties in the process of identification.At the same time,the whole algorithm can update the identification result with the augment of observations.The performance of the proposed algorithm is assessed by simulations.Results show that the proposed algorithm can successfully deduce the aircraft’s identity even if the observations have measurement errors.展开更多
在信息化战争背景下,敌我识别(Identification Friend or Foe,IFF)技术得到快速发展,对敌方IFF系统的有效干扰是保护己方设备安全的重要手段。介绍了一种基于现场可编程逻辑阵列(Filed Programmable Gate Array,FPGA)器件和高速数模转换...在信息化战争背景下,敌我识别(Identification Friend or Foe,IFF)技术得到快速发展,对敌方IFF系统的有效干扰是保护己方设备安全的重要手段。介绍了一种基于现场可编程逻辑阵列(Filed Programmable Gate Array,FPGA)器件和高速数模转换器(Digital to Analog Converter,DAC)的IFF信号模拟器的实现方法,配合IFF侦察系统可实现对敌方IFF系统进行实时、有效的干扰。展开更多
The International Foundry Forum where the CEOs meet - this year in Lisbon Question: The fourth edition of the International Foundry Forum (IFF), after Paris, Berlin and Stresa is scheduled to take place on September 2...The International Foundry Forum where the CEOs meet - this year in Lisbon Question: The fourth edition of the International Foundry Forum (IFF), after Paris, Berlin and Stresa is scheduled to take place on September 28-29, 2006 in Lisbon. Do you expect a large participation of executives also in Portugal?展开更多
文摘11月22-23日,“花开不败·东方不败—25秋冬纽约时装周JZ x FURMARK新品品鉴会”于成都、杭州双城接续上演。此次活动由国际毛皮协会IFF与安正时尚集团旗下高端女装品牌JZ玖姿联合主办,中国时尚产业创新传播力量IP-时尚背后的秘密??策划呈现,标志着此项战略合作圆满收官。继上海首发后,JZ玖姿2025秋冬纽约时装周秀场同款在“活力之都”成都与“电商之都”杭州的再度亮相,不仅是璀璨秀场与真实生活的交融,更是天然皮草可持续时尚内核的一次纵深表述与市场下沉。
文摘对于雷达与IFF(Identification Friend or Foe)背靠背配置时的关联问题,提出了关联算法.主要包括雷达航迹与IFF点迹的时间对准、判别函数构造、关联判决准则选择和关联判决门限设置等,并讨论了多义性问题.4种典型情况下的仿真结果表明,目标间隔与目标到雷达距离之比越大时,关联效果越好;目标交叉时,离交叉点越近,关联效果越差;目标机动阶段时间对准采用雷达航迹平滑的关联效果优于航迹预测,其它情况下采用两种时间对准方法的关联效果相近;在NED(North EastDown)坐标系和极坐标系下的关联效果相近;n/m逻辑应选择2/3或3/4,以同时保证对友方目标的漏关联概率和不明目标的误关联概率都较低.
文摘为了在非合作条件下对敌我识别(Identification Friend or Foe,IFF)信号进行实时检测,分析IFF应答信号的特征,提出IFF应答信号实时检测技术,对其中基于多相滤波的正交变换、包络检波及脉冲参数精确测量等关键技术进行了分析,并在现场可编程门阵列(FPGA)中进行了实现及测试,证明该技术完全满足工程实现的需求。
文摘The problem of identification of friend-or-foe aircraft in the actual application condition is addressed.A hybrid algorithm combining fuzzy neutral network with probability factor（FNNP）,multi-level fuzzy comprehensive evaluation and the DempsterShafer（D-S） theory is proposed.This hybrid algorithm constructs a complete process from generating the fuzzy database to the final identification,realizes the identification of friend-or-foe automatically if the training samples or expert’s experience can be obtained,and reduces the effect of uncertainties in the process of identification.At the same time,the whole algorithm can update the identification result with the augment of observations.The performance of the proposed algorithm is assessed by simulations.Results show that the proposed algorithm can successfully deduce the aircraft’s identity even if the observations have measurement errors.
文摘在信息化战争背景下,敌我识别(Identification Friend or Foe,IFF)技术得到快速发展,对敌方IFF系统的有效干扰是保护己方设备安全的重要手段。介绍了一种基于现场可编程逻辑阵列(Filed Programmable Gate Array,FPGA)器件和高速数模转换器(Digital to Analog Converter,DAC)的IFF信号模拟器的实现方法,配合IFF侦察系统可实现对敌方IFF系统进行实时、有效的干扰。
文摘The International Foundry Forum where the CEOs meet - this year in Lisbon Question: The fourth edition of the International Foundry Forum (IFF), after Paris, Berlin and Stresa is scheduled to take place on September 28-29, 2006 in Lisbon. Do you expect a large participation of executives also in Portugal?
