Polarization Diversity on ESM Systems

Non‐analytical direction‐finding method as a key step in pursuing low size, weight, costs, and computational power in the deinterleaving of radar pulses

“…The final arrangement of the array antennae, shown in Fig. 8 b , included a disposition inclined at 45° with the horizon due to considerations about polarisation on ESM systems studied in [22]. On the one hand, the use of this prototype allowed the verification of the proposed method.…”

“… Prototype of ESM system (a) Detailed depiction of the entire system with its components and connections, (b) Wooden stand supporting the antennae on the disposition they have assumed, due to the polarisation issues described in [22]…”

Accuracy improvement in amplitude comparison‐based passive direction finding systems by adaptive squint selection

“…Usually, dual polarised antennas are not used keeping in view the complexity and weight of the receiver. In [23] a method has been presented to cater polarisation mismatch and improve AOA with bow‐tie antenna. In [2] the paper addresses different errors affecting AOA especially polarisation which is identified with the help of omni antennas and different LUTs are selected for respective polarisation and claims to improve the accuracy up to 60% as compared to polarisation mismatch.…”

Four-Arm Sinuous Antenna With Low Input Impedance for Wide Gain Bandwidth

“…The combination brings out the attribute of polarization diversity, which makes the sinuous antenna useful in ground penetrating radar [3], direction finding [4], [5], radio astronomy [6], [7], electromagnetic pulse [8], and other ultrawideband (UWB) applications. In particular, the fourarm sinuous antenna with dual-linear polarization capability and wide beam-width is compelling candidate in the electronic support measures (ESM) systems [9], [10]. In [10], it is demonstrated that the receiver antenna of the ESM system can obtain better performance with dual-linear polarization than circular polarization capability.…”