The present invention relates to target acquisition and related devices, and more particularly to telescopic gunsights and associated equipment used to achieve shooting accuracy at, for example, close ranges, medium ranges and extreme ranges at stationary and moving targets.

The present invention relates to target acquisition and related devices, and more particularly to telescopic gunsights and associated equipment used to achieve shooting accuracy at, for example, close ranges, medium ranges and extreme ranges at stationary and moving targets.

The present invention relates to target acquisition and related devices, and more particularly to telescopic gunsights and associated equipment used to achieve shooting accuracy at, for example, close ranges, medium ranges and extreme ranges at stationary and moving targets.

The present invention relates to target acquisition and related devices, and more particularly to telescopic gunsights and associated equipment used to achieve shooting accuracy at, for example, close ranges, medium ranges and extreme ranges at stationary and moving targets.

A projectile detection technique is disclosed. The technique helps improve the self-defense capabilities of strategic platforms such as naval ships against asymmetric threats such as anti-ship missiles (ASMs). These threats can be particularly challenging in a highly cluttered maritime environment, where the threats can be too close for radar to accurately detect. In one example, the projectile detection technique automatically detects ASMs flying above the horizon by using mid-wavelength infrared (MWIR) and visible/near-infrared (VNIR) camera systems, and locating the horizon line and segmenting the imagery into different regions. Projectiles are detected in the near-horizon segment using a Fourier phase-only transform and convolution matched filters to enhance exceedances, then applying multi-frame processing to measure persistence and scintillation (e.g., flicker from missile exhaust) to help filter out background clutter objects. The use of the phase-only transform, matched filters, and multi-frame processing helps detect single-point anomalies and distinguish ASMs from background clutter.

A projectile detection technique is disclosed. The technique helps improve the self-defense capabilities of strategic platforms such as naval ships against asymmetric threats such as anti-ship missiles (ASMs). These threats can be particularly challenging in a highly cluttered maritime environment, where the threats can be too close for radar to accurately detect. In one example, the projectile detection technique automatically detects ASMs flying above the horizon by using mid-wavelength infrared (MWIR) and visible/near-infrared (VNIR) camera systems, and locating the horizon line and segmenting the imagery into different regions. Projectiles are detected in the near-horizon segment using a Fourier phase-only transform and convolution matched filters to enhance exceedances, then applying multi-frame processing to measure persistence and scintillation (e.g., flicker from missile exhaust) to help filter out background clutter objects. The use of the phase-only transform, matched filters, and multi-frame processing helps detect single-point anomalies and distinguish ASMs from background clutter.

A system and method for determining a discharge event of a firearm is provided. An event detection module receives acceleration and rotation input signals from an inertial measurement unit configured on the firearm. Respective acceleration and rotation input signals are assigned to sample event candidates at respective windows of time. The acceleration signals of the sampled event candidates are compared to a discharge acceleration template that represents a confirmed weapon discharge event. A subset of accepted accelerations from the sampled event candidates are identified that satisfy the discharge acceleration template. A first rotation input signal from the sample window of time associated with each accepted acceleration in the subset is compared to a first rotation template that represents a confirmed weapon discharge event. A determination is made whether the sample event candidate is a discharge event based on satisfying both the discharge acceleration template and the first rotation template.

The present invention relates to target acquisition and related devices, and more particularly to telescopic gunsights and associated equipment used to achieve shooting accuracy at, for example, close ranges, medium ranges and extreme ranges at stationary and moving targets.

The present invention relates to target acquisition and related devices, and more particularly to telescopic gunsights and associated equipment used to achieve shooting accuracy at, for example, close ranges, medium ranges and extreme ranges at stationary and moving targets.

A method providing discharge monitoring of a firearm includes a signal processing module and a safety selector switch sensor. The event detection module has at least one sensor that senses an acceleration and generates an acceleration signal. The signal processing module receives the acceleration signal and is configured to determine whether the acceleration signal is a discharge event and generate an event detection signal based on the determination, the signal processing module further configured to maintain a shot count of the firearm based on the determination that the event detection signal is a discharge event. The safety selector switch sensor communicates with a safety switch configured on the firearm, and communicates a safety switch signal to the signal processing module corresponding to a position of the safety switch. The event detection signal is further based on the safety switch signal.