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    • 34. 发明申请
    • Method and apparatus to perform reactive jamming while simultaneously avoiding friendly pseudo-random frequency hopping communications
    • 执行反应干扰同时避免友好的伪随机跳频通信的方法和装置
    • US20070297489A1
    • 2007-12-27
    • US11703876
    • 2007-02-07
    • Lars Karlsson
    • Lars Karlsson
    • H04B1/713
    • H04K3/28H04B1/715H04K3/42H04K3/45
    • Method and Apparatus to Perform Reactive Jamming While Simultaneously Avoiding Friendly Pseudo-Random Frequency Hopping Communications is disclosed. The system provides an enhancement to surgical reactive jammers that combines near-real-time jamming capability with the additional feature of allowing tactical communications. The jammer includes a synchronization subsystem that synchronizes jammer lockout frequencies with those frequencies being hopped to by units that are members of a friendly communications network. The synchronization subsystem is coordinated with, and therefore tied to the time-synchronized cryptography of the friendly communications net. As a result, the jammer will be aware, on a real-time basis, which frequency the friendly communications network will next be hopping to. The jammer's awareness of these future frequencies will allow those frequencies to be “locked out” of the jammer's transmission band dynamically.
    • 同时避免友好的伪随机跳频通信的方法和装置进行反应干扰。 该系统提供了将近实时干扰功能与允许进行战术通信的附加功能相结合的手术反应干扰器的增强。 干扰器包括同步子系统,其将干扰信号锁定频率与由友好通信网络的成员跳转的频率同步。 同步子系统与友好通信网络的时间同步密码协调,并因此与时间同步密码相关联。 因此,干扰器将实时了解下一个友好通信网络将跳频到哪个频率。 干扰器对这些未来频率的意识将允许这些频率被动态地“干扰”扰乱传输频带。
    • 35. 发明授权
    • Real-time emitter locating system and method
    • 实时发射机定位系统及方法
    • US07242351B2
    • 2007-07-10
    • US10785353
    • 2004-02-24
    • Lars KarlssonDmitri Soloviev
    • Lars KarlssonDmitri Soloviev
    • G01S5/04
    • G01S5/04G01S5/021
    • A Real-time Emitter Locating (EL) System and Method is disclosed. The system provides a technique for taking in data sets (lines of bearing) from DF receivers and characterizing those signals with their respective probabilities of error. Then using a unique method, the preferred system applies a recursive processing technique to this continuous stream of data, displaying transmitter positions with significantly less uncertainty. Furthermore, the preferred system is able to perform these functions in real-time. The system is further capable of being fully automated to reduce the processing time and reduce the necessity of human intervention. Still further, in an alternative embodiment of the present invention the system can be remotely controlled over a communications network whereby collected locating data from a single DF set, or alternatively from more than one DF sets can be combined to arrive at estimated positions for a transmitter. In this way, a far more efficient EL System can be achieved in which the emitter's position can be determined more quickly from a centralized command facility. This combination of data filtering and data collection techniques significantly reduces measurement uncertainties and enhances the accuracy of EL systems.
    • 公开了一种实时发射器定位(EL)系统和方法。 该系统提供从DF接收机接收数据集(方位线)的技术,并用它们各自的误差概率来表征这些信号。 然后使用独特的方法,首选系统对这个连续数据流应用递归处理技术,显示发射机位置具有明显较小的不确定性。 此外,优选的系统能够实时地执行这些功能。 该系统还能够完全自动化以减少处理时间并减少人为干预的必要性。 此外,在本发明的替代实施例中,系统可以通过通信网络进行远程控制,由此可以组合来自单个DF组或者可选地来自多于一个DF组的定位数据,以便达到发射机的估计位置 。 以这种方式,可以实现更高效的EL系统,其中可以从集中式命令设备更快地确定发射器的位置。 数据滤波和数据采集技术的这种组合显着降低了测量不确定度并提高了EL系统的精度。
    • 36. 发明申请
    • Method and apparatus to perform surgical reactive jamming while maintaining simultaneous tactical communications
    • 在同时进行手术通信的同时执行手术反应性堵塞的方法和装置
    • US20070116093A1
    • 2007-05-24
    • US11480706
    • 2006-07-03
    • Lars Karlsson
    • Lars Karlsson
    • H04B1/00
    • H04K3/42H04K3/28H04K3/45H04K2203/34
    • A Method and Apparatus to Perform Surgical Reactive Jamming while Maintaining Simultaneous Tactical Communications is disclosed. The system provides an enhancement to surgical reactive jammers that combines near-real-time jamming capability with the additional feature of allowing tactical communications. The tactical communications transmissions are compressed and packetized such that they can be broken up and transmitted during the jamming system's look-through periods. This approach facilitates listening during these look-through periods (not only for EW emitters, but also for friendly communications signals). The system should allows for talk during these look-through periods (“talk-through” periods). Such a system is unique in that it can automatically calculate the best frequency for a surgical reactive jammer to use against enemy targets as well as providing a fully secure tactical communications link which is synchronized with other units in the field. This invention is therefore vital to the interests of United States national security as it provides a valuable Electronic Warfare capability.
    • 公开了一种在维持同时战术通信的同时执行手术反应干扰的方法和装置。 该系统提供了将近实时干扰功能与允许进行战术通信的附加功能相结合的手术反应干扰器的增强。 战术通信传输被压缩和分组化,使得它们可以在干扰系统的浏览期间被分解和传输。 这种方法有助于在这些浏览期间(不仅用于EW发射器,而且用于友好的通信信号)。 系统应允许在这些浏览期间(“通话”期间)进行通话。 这样的系统是独一无二的,因为它可以自动计算手术反应干扰器用于敌方目标的最佳频率,以及提供与现场其他单位同步的完全安全的战术通信链路。 因此,本发明对美国国家安全的利益至关重要,因为它提供了有价值的电子战能力。