What the three classes of Autonomous Weapons Systems with reference to an online source publicly available ?

According to an online source from the United Nations Institute for Disarmament Research (UNIDIR), the three classes of Autonomous Weapons Systems are as follows:

1. Human-supervised autonomous weapons systems: These systems require a human operator to make decisions and take actions, but they can also operate autonomously within predefined parameters.

2. Human-on-the-loop autonomous weapons systems: These systems can operate autonomously to select and engage targets, but a human operator is able to intervene and override the system's decisions if necessary.

3. Fully autonomous weapons systems: These systems can select and engage targets without human intervention, relying on artificial intelligence and sensors to make decisions.

Source: https://www.unidir.org/publication/autonomous-weapons-systems-technical-operational-and-policy-challenges