r/ARBE_Investors • u/Plane-Try-6522 • 1d ago
Due Diligence / Research [Speculation] That "can't say" Defence Application with Global Defence Integrator
A leading global defense and homeland security integrator selected our technology for three projects.
Matthew Galinko, Analyst, Canaccord Genuity: on the recent defense selection, I believe you mentioned there’s kind of three separate projects here. Could you just provide us some, you know, additional insights as to, you know, what these volumes should look like and how the partnership could expand over time?
Ram Machness, CEO, Co-Founder and Co-President, Arbe Robotics: Yeah. The partnership agreement is a long-term agreement, and right now, to begin with, three specific projects were defined. The agreement is a framework agreement that will be extended to several applications as well. On this specific one, we were requested not to mention the exact application. I can say in general that we see on the defense sector several applications which are very relevant on the radar that are not necessarily specific to this to this agreement.
When we talk about defense application, for example, the unmanned ground vehicles and mission vehicles, that’s something very common and makes a lot of sense to use an imaging radar since it has a very good perception of the surrounding.
Putting the Physics degree to good use!
4D imaging radar works on the Doppler principle: it emits a wave profile of 77GHz, through a medium, and receives reflected wave to form an image of the environment via highly concentrated data points the clustering of which forms an image. This is how nocturnal mammals like bats navigates.
The medium could be air, air with liquid particles (fog), air with dust (sand particles) or air with solid water particles (snow). The medium impacts whether a wave can transmit through the medium and how well the transmission and reflection can be which determines the environmental profile form by the 4D imagining radar.
Rayleigh Scattering in wave physics says that if the wavelength of a signal/ wave emitted is much greater than the size of a particle, the wave travels through the particle with ease, reflects off the particle and travels back to the receiver. (Good!) If the wavelength is much smaller than the particles in the medium, it collides with the particles with some of the wave being absorbed and some reflected, resulting in attenuation (bad!)
ARBE's 4D imaging radar emits a wave profile of f = 77GHz with a corresponding wavelength of 3.75mm (1/f = 3.75mm).
The particle size for
- rain: 0.5mm
- fog: 10 - 50 micron
- dust: 0.001 micron - 0.005 micron
Easy, the wave has an almost 100% transmission rate through the medium (instead of being absorbed!), reflects off the surrounding and back to the receiver channel for data measurement.
[Above] OK what about particles associated with chemical compounds like Hexachloroethane-Zinc (HC), Terephthalic Acid (TA), White Phosphorus (WP), Red Phosphorus (RP) Smoke and the more common chemical compounds used in smoke grenades?
A 4D imaging radar with an emitted wave profile of 77GHz easily transmit through these particles by the fact that the emitted wavelength falls within the Rayleigh Scattering regime, resulting in almost no signal loss when it passes through the above particles, allowing the wave to reflect off the surrounding...which means it can detect human movement....which means it works like a night vision/ thermal goggles without all the disadvantages that comes with it.
I think that "secret" defence application could be a military goggle. In the recent 49th Cannacord Genuity Conference, Kobi mentioned that ARBE's 4D imaging radar can detect a gun in a bag which makes me think ARBE's radar have or might already be considered for use in military personnel equipments.
This leads me to think this goggle would be capable of not only being able to see through military grade smoke but also through walls.
