passive-active detection and location

简明释义

被动-主动探测与定位系统无源—有源探测定位

英英释义

例句

1.The new surveillance system utilizes passive-active detection and location to monitor the premises effectively.

新的监控系统有效地利用了被动-主动检测和定位来监视场所。

2.In maritime security, passive-active detection and location helps in identifying unauthorized vessels.

在海洋安全中，被动-主动检测和定位有助于识别未经授权的船只。

3.Smart cities are increasingly using passive-active detection and location to manage traffic flow.

智能城市越来越多地使用被动-主动检测和定位来管理交通流量。

4.The wildlife conservation project incorporates passive-active detection and location to track endangered species.

野生动物保护项目结合了被动-主动检测和定位来追踪濒危物种。

5.The military employs passive-active detection and location technologies for tracking enemy movements.

军方利用被动-主动检测和定位技术追踪敌方动向。

作文

In the modern world, technology plays a crucial role in various fields, including security, surveillance, and navigation. One of the most advanced techniques utilized in these areas is passive-active detection and location. This method combines both passive and active systems to enhance the accuracy and efficiency of detecting and locating objects or individuals. To fully understand this concept, we must first break down its components.Passive detection refers to systems that observe and analyze signals without actively sending any signals themselves. For example, in surveillance, passive sensors can detect infrared radiation emitted by objects, such as vehicles or human bodies, without emitting any detectable signals. This makes them less intrusive and harder to detect, providing an advantage in situations where stealth is essential.On the other hand, active detection involves systems that emit signals and then analyze the reflections or responses received from those signals. Radar systems are a prime example of active detection; they send out radio waves and measure the time it takes for the waves to return after bouncing off an object. This method allows for precise distance measurements and can track moving objects effectively.Combining these two approaches leads to what we refer to as passive-active detection and location. In many practical applications, using both methods together provides a more comprehensive understanding of the environment. For instance, in military operations, utilizing passive-active detection and location can help identify enemy positions while minimizing the risk of detection. Passive sensors can gather information about the enemy's movements without revealing the location of friendly forces, while active sensors can confirm these observations with precision.In the field of navigation, passive-active detection and location is also invaluable. GPS systems rely on active signals from satellites, but integrating passive sensors can improve accuracy, especially in urban environments where buildings may obstruct signals. By analyzing passive data from various sources, such as cell towers or Wi-Fi networks, navigation systems can provide more reliable location information.Moreover, the integration of passive-active detection and location technologies has significant implications for public safety. For instance, in search and rescue operations, teams can utilize both passive and active methods to locate missing persons more efficiently. Drones equipped with thermal imaging cameras can passively detect body heat, while simultaneously using active sonar or radar to pinpoint exact locations.In conclusion, the concept of passive-active detection and location represents a synergistic approach that leverages the strengths of both passive and active systems. This combination not only enhances detection capabilities but also improves situational awareness across various applications. As technology continues to advance, the importance of integrating these methods will only grow, leading to more effective solutions in security, navigation, and beyond.

在现代世界中，技术在安全、监视和导航等多个领域发挥着至关重要的作用。其中一种在这些领域中使用的最先进的技术是被动-主动检测与定位。这种方法结合了被动和主动系统，以增强检测和定位物体或个体的准确性和效率。要全面理解这一概念，我们必须首先分解其组成部分。被动检测是指观察和分析信号而不主动发送任何信号的系统。例如，在监视中，被动传感器可以检测物体（如车辆或人体）发出的红外辐射，而不发出任何可检测的信号。这使得它们更不具侵入性且更难以被发现，在潜伏至关重要的情况下提供了优势。另一方面，主动检测涉及发出信号的系统，然后分析从这些信号接收到的反射或响应。雷达系统就是主动检测的一个典型例子；它们发出无线电波，并测量波在碰撞物体后返回所需的时间。这种方法允许进行精确的距离测量，并能够有效跟踪移动物体。将这两种方法结合起来，就形成了我们所称的被动-主动检测与定位。在许多实际应用中，结合这两种方法提供了对环境的更全面理解。例如，在军事行动中，利用被动-主动检测与定位可以帮助识别敌方位置，同时最小化被发现的风险。被动传感器可以在不暴露友军部队位置的情况下收集敌方运动的信息，而主动传感器则可以精确确认这些观察结果。在导航领域，被动-主动检测与定位也极为宝贵。例如，GPS系统依赖于来自卫星的主动信号，但整合被动传感器可以提高准确性，特别是在建筑物可能遮挡信号的城市环境中。通过分析来自各种来源的被动数据，例如手机信号塔或Wi-Fi网络，导航系统可以提供更可靠的位置信息。此外，被动-主动检测与定位技术的整合对公共安全具有重要意义。例如，在搜救行动中，团队可以利用被动和主动方法更高效地定位失踪人员。配备热成像摄像头的无人机可以被动检测体温，同时使用主动声纳或雷达精确定位。总之，被动-主动检测与定位的概念代表了一种协同的方法，该方法利用了被动和主动系统的优势。这种组合不仅增强了检测能力，还提高了各种应用中的态势感知。随着技术的不断进步，整合这些方法的重要性只会增加，从而在安全、导航等领域提供更有效的解决方案。