近些年來由於個人行動通訊之需求及發展，各種廣域或區域之無線及有線軍/民用通訊系統，隨著相關電子及通訊產業技術之創新及突破而蓬勃發展。然而，針對戰術性通訊系統而言，為遂行特定戰術性作為或目的及降低干擾系統意圖偵測及截收整個通訊系統之私密資訊傳送性能，安全之通訊系統普遍需具備低信號偵測及截收率(LPD/I)性能，藉由降低干擾系統之信號偵測及截收效益，使其無法達到有效干擾之手段。此外，由於跳頻展頻系統具有良好的抗干擾(anti-jam)及不易被攔截的特性，在軍事用途上，被用來防止敵方的蓄意干擾及攔截。因此，研究如何評估跳頻通訊干擾系統之有效干擾性能便是本論文之重要研究課題。 Due to the requirements and developments of personal mobile communications for the past several decades, all kinds of global and local wireless/wire and military/civil communications systems are developing flourishingly in accordance with the novelties and breakthrough of all related electronic and communication techniques. Nevertheless, in order to fulfill specific tactical operations or objectives, especially for the tactical communications systems, and to decrease the intentions of the adversaries to detect and intercept the transmissions of some specified private information, secure communications systems should have the low probability of detection and interception capability to lower the probability of being detected and intercepted by the adversaries, make it unable to reach the means to effective jamming. In addition, because Frequency-Hopping Communications system have the characteristic of good anti-jamming (anti-jam) and difficult to be intercepted, it used for preventing the bent on jamming and interception of the enemy on the military appliance .Therefore , it’s a very important research topic of this thesis to evaluate the performance of Electronic Jamming System for Frequency-Hopping Communications.
