Hertz As A Measurement

RF Engines Releases ChannelCore FlexTM, the World's Most Flexible Ultra ...

Newport, Isle of Wight -- ( SBWIRE ) -- 06/21/2011 -- The ultimate radio receiver is capable of detecting and processing signals across all of the radio spectrum, all of the time. RF Engines Limited (RFEL) has taken a large step towards this goal with the introduction of an innovative and highly flexible, ultra-wideband, Channelizer IP core – the ChannelCore Flex™. ChannelCore Flex is a major breakthrough as it provides the customer with the ability to extract from a very wide input signal any number of channels simultaneously in real time. These can be any combination of different bandwidths and sampling rates with any overlap and centre frequencies. Furthermore, each channel can be individually defined and changed as required so that the system designer can tailor a solution that precisely meets the needs of the application on a single FPGA. RFEL anticipates that the ChannelCore Flex will find widespread application in areas including Electronic Surveillance, satellite communications and future Base Station architectures, where simultaneous monitoring, detection and demodulation of a mixture of disparate communication channels, such as WiMax and GSM, using a single architecture are a definitive requirement. “ChannelCore Flex delivers advanced features that are the culmination of over ten years of design and implementation experience and delivers the ability to do things that previously could not be done or required huge resources,” explained John Summers, RFEL’s CEO. “The pedigree of RFEL in the area of channelization means that there is a very low technical risk when embarking on a new design, so customers can be confident of being ‘up and running’ very quickly.” More advanced signal processing techniques, such as Weighted Over-Lap and Add (WOLA) pre-processing and hierarchical channelization using a Pipelined Frequency Transform (PFT), can overcome many of these limitations. RFEL has adopted these highly significant enhancements, along with other proprietary techniques, to create an ultra-wideband Channelizer that offers unrivalled performance and flexibility, enabling it to be tailored to bespoke applications while remaining very hardware efficient. ChannelCore Flex is capable of being configured to support many thousands of channels, spanning an input bandwidth exceeding 1 GHz. Importantly, these channels can have individual bandwidths that can vary by several orders of magnitude, be overlapped to accommodate broadband transmissions, and have centre frequencies and sample rates that can be independently tuneable to sub-Hertz resolution (=1Hz). The end result is a Channelizer architecture that can be configured to support concurrent monitoring of multiple channels, with bandwidths ranging from as large as hundreds of Megahertz, to as narrow as a few Hertz, delivering an overall aggregate channelized sample rate that can exceed 1Gs/s. Unfortunately, there is no optimal, ‘one size fits all,’ Channelizer architecture, as each application places very different demands on the implementation. RFEL has resolved this problem by producing an IP core that is compile and run-time programmable from a simple set of parameters derived from the user’s technical specification. The end result is a high-performance and optimized IP core that has precisely the required level of flexibility demanded by the application, while minimising hardware cost and delivering a fast time-to-market. ChannelCore Flex is available for licensing now for implementation in a wide range of Xilinx or Altera FPGA devices. Supplied as a netlist, the IP is very compact so that low cost, medium sized FPGAs could be used. For example, a solution for a 200MHz input with 500 channels ranging from 5kHz to 5MHz would fit on a $100 device. Prices are dependent on each implementation’s specific set of requirements, but typically fall in the range of $10K - $40K. RF Engines Limited (RFEL) is a leading UK-based electronic systems design company, providing high specification signal processing solutions for FPGAs, as well as supplying digital receiver and complete product solutions for the homeland security, defence, communications and instrumentation markets. Applications include communications base stations, satellite communications systems, test and measurement instrumentation, and bespoke wideband receivers/transceivers.

Choosing a wall fountain: size and design details | The Mega Hertz

Choosing a wall fountain: size and design details

Often applied in outside landscaping and in European foyers, the wide variety of wall mounted fountains available on the open marketplace has increased in recent years to replicate the sleek, up to date shapes and items which take over modern art and commercial design. Picking an suitable wall water feature is similar to selecting a work of art to grasp on your wall, or selecting a tabletop water fountain- but this specific alternative has far more complexities and concerns in contrast to either.

Measurement Details

The initially things you need to consider are all in regards to measurement: the measurement of the room, the measurement of the walls, and the measurement of various art in the room. How much white area is on the wall in question? How much white area is on the various walls in the room? Are there any various focal points which the water feature will be in contest with, similar to a tv or a big wall hanging? Do you want something which will quietly highlight a wall, or generate a daring and visual statement? Answering these questions will let you to generate an knowledgeable determination on exactly how big and prominent a wall fountain you wish to purchase.

Also always remember which the larger the water feature, the far more water will be circulating, and the louder the auditory of dropping water will be. That's not to say which big water features are overly loud- simply which an increase of water and larger pumping methods will provoke a little and understandable increase in ambient auditory. This is particularly advisable in open areas of the place you may desire the water feature to be the middle of extra attention at the same time delivering a sense of calmness to its surroundings.

Look at Form And Coloration

If you possess various artwork or framed photos up on your walls, take notice of the shape and style of the art and its frames. Is every little thing squared? Are the items applied organic- like wooden or jewel or fabric- or are they far more commercial, like glass and metal? Do you want something which will mix in or stand out? If you want something which will mix in, choose items and shapes which match up which previously exists in the room. If you want something to stand out, choose one of the predominant themes to change. If all of the art in a room is framed in black, metallic rectangles, choose a rectangular wall water feature forced of a brightly colored metal, like copper.

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