  For the first time, the hybrid triple coding empowered Frequency Division
Multiple Access (FDMA) Code Division Multiple Access (CDMA) mode of the CAOS
(i.e., Coded Access Optical Sensor) camera is demonstrated. Compared to the
independent FDMA and CDMA modes, the FDMA-CDMA mode has a novel high security
space-time-frequency triple signal encoding design for robust, faster, linear
irradiance extraction at a moderately High Dynamic Range (HDR). Specifically,
this hybrid mode simultaneously combines the linear HDR strength of the FDMA
mode Fast Fourier Transform (FFT) Digital Signal Processing (DSP)-based
spectrum analysis with the high Signal to Noise Ratio (SNR) provided by the
many simultaneous CAOS pixels photodetection of the CDMA mode. In particular,
the demonstrated FDMA CDMA mode with P FDMA channels provides a P times faster
camera operation versus the equivalent linear HDR Frequency Modulation (FM)CDMA
mode. The active FDMA CDMA mode CAOS camera operation is also demonstrated
using P equal to 3 LED light sources, each with its unique optical spectral
content driven by its independent FDMA frequency. This illuminated target
spectral signature matched active CAOS mode allows simultaneous capture of P
images without the use of P time multiplexed slots operation tunable optical
filter.
