  Event camera is a new type of sensor that is different from traditional
cameras. Each pixel is triggered asynchronously by an event. The trigger event
is the change of the brightness irradiated on the pixel. If the increment or
decrement is higher than a certain threshold, the event is output. Compared
with traditional cameras, event cameras have the advantages of high temporal
resolution, low latency, high dynamic range, low bandwidth and low power
consumption. We carried out a series of observation experiments in a simulated
space lighting environment. The experimental results show that the event camera
can give full play to the above advantages in space situational awareness. This
article first introduces the basic principles of the event camera, then
analyzes its advantages and disadvantages, then introduces the observation
experiment and analyzes the experimental results, and finally, a workflow of
space situational awareness based on event cameras is given.
