I need a word that describes two sensors that collect the same features, but in different ways. The raw data may be of different types, but the features would be the same. This word would imply that dodging one sensor does not help dodge the other sensor.
An example of two sensors that fit this criteria are visual cameras and infrared cameras. They both measure light with the purpose of seeing what is there, but an attempt to avoid one of them (ex: camouflage) will not help avoid detection by the other one.
I've considered both the words "orthogonal" and "complementary", but neither seems to fit. Orthognal implies that the sensors never detect the same thing and complementary seems to imply that one sensor always detects what the other doesn't.
Update: I should have mentioned that my target audience is mathematically minded people. When I use the words orthogonal or complementary, they will, in all probability, think of the mathematical definition.