Copyright © 2006 -
Unistring Tech Solutions Pvt. Ltd., INDIA
Solar & EPC
Products & Technologies
ISO certified company
UTS offers wide range of products in Wireless
communications, RADAR, SONAR, EDA and Energy sectors. With the long
standing IP core development experience, UTS offered products use
latest algorithms and technological developments, to provide better
features than existing products. UTS products take best out of the
latest FPGA/GPU/CPU technologies to offer improved features compared to
legacy processor based products.
UTS being ISO 9001:2008 certified company,
follows standard procedures while executing the projects, to
ensure long term success to client, by delivering fully
verified, reusable and well documented software and hardware modules.
Multi band radio Application note
here to download data sheet
Multi band radio
Contact us at firstname.lastname@example.org
for more details
MILITARY RADIO topologies today are demanding
complex features to be achieved at base band, RF and antenna stages.
The present and future tactical radio needs can be met with latest RF
& VLSI technologies based hardware and state of the art Digital
Signal Processing (DSP) algorithms. This application note presents
important capabilities of UTS provided hardware, firmware, waveform
libraries and algorithmic solutions, towards realizing modern tactical
1. Small size and Portability
The size of the radio is becoming day by day
important, as small sized platforms are being aimed to perform crucial
EW operations. The UAV projects with multiple EW payloads is the best
example to understand growing importance of small sized radio
solutions. The UTS offered radio solutions can be categorized to two
types as illustrated in below figure. With modular architectures being
followed in UTS firmware for interface design, both the categories of
products maintain same feature wise capabilities. The hardware is based
on Xilinx Zynq series FPGAs interfaced with high speed ADCs, DACs and
(a) PC interfaced wideband radio
(b) Embedded interfaced Radios
(c) UTS - 3U VPX card with digital
and RF (upto 6 GHz)
Figure 1. UTS offered Radio
solutions (*Excluding Tx power amplifiers, LNA and antennas)
The compact UTS radio module offering
frequency coverage from 70MHz to 6 GHz, with small form factor is
suitable for several modern communication requirements.
2. Software configurability and ECCM
Electronic Counter Counter Measures (ECCM)
features are essential for tactical radios. To develop ECCM featured
radios, the UTS offered hardware and software capabilities are
presented in below table.
Suitability for tactical radios
Wide band coverage for selected
hardware can cover band of frequencies in +/- 25 MHz from the tuned
centre frequency. This enables user to switch the carrier anywhere in
this 56 MHz range,without triggering the external PLL. The frequency
switching is achieved through FPGA inside NCOs. To implement Burst and
Frequency Hopping (FH) waveforms there is no limitation of switching
time with in this 50 MHz bandwidth range.
Fast Frequency tuning with only 40
µsec, PLL switching time
implement FH and Burst beyond 56 MHz bandwidth the PLL external to FPGA
need to be tuned. The hardware with fast PLL switching of 40 µsec,
allows quick band change across the full frequency span.
Tight integration of FPGA
algorithm with AGC
hardware offered has two modes of AGC operation. In auto mode the
analog circuit adjusts the gain to maintain constant digital stream in
FPGA. In manual mode the FPGA inside logic can give gain controls to
achieve desired AGC functionality. The programmable AGC with different
time constants becomes suitable for implementing jamming detection
algorithm and hence adopt ECCM scheme.
Multi RF channel synchronization
Featured with external clocking provision and
multi board digital synchronization methods it is possible to establish
multichannel hardware. The multichannel hardware is very useful in
realizing beamforming applications.
Tx / Rx channels in 50 MHz band
UTS Digital Down Converter (DDC) IP provides multiple parallel outputs
at the desired frequencies within 50 MHz bandwidth. The feature rich
C-SOC Zynq FPGA allows configuration of multiple parallel
modulators/demodulators. This feature enables simultaneous
transmission and reception on signals.
3. Voice, digital data and Ethernet
The MBR hardware is capable of providing
voice and data connectivity. The voice connectivity is provided by
add-on audio CODEC module. The data connectivity is provided by two
means. Direct digital data connectivity through GPIOs and packetized
data through Ethernet.
UTS communication IP cores work with flexible
FIFO interfaces to source/sink data for multiple I/O interfaces. The
SDK provided allows high speed no-OS based Ethernet protocol stack to
offer real time software packetizing / de-packetizing features. The
figure below shows the general UTS communication waveforms connectivity
with the Ethernet stack.
Figure 2. Voice, data and LAN
connectivity for radios
4. Extendable architecture
- Multiband and Multichannel
The modular architecture of Multiband radio
modules allow incorporating multiple hardware modules to achieve
simultaneous transmission and reception capability in multiple channels
across the full band.
Figure 3. Three UTS-3UVPX-WB-X
modules configured across multiple bands.
As illustrated in figure the hardware modules
can be stacked to increase the number of simultaneous processing
channels across entire frequency range. Since the waveforms and UTS IPs
are portable across frequency ranges, the "software configurable multi
band and multi channel radio" can be implemented.
Table 1. UTS - MBR supported
features to develop ECCM
enabled tactical radios.
(b)Embedded interfaced Radios