Field Programmable Gate Arrays (FPGAs) are best suited for signal processing applications that require real-time processing. Therefore, it is preferred over DSP processors in implementing radar receivers that processes incoming continuous stream of data. In the past, implementing complex arithmetic operations in floating point representation was a monopoly on DSP processors and the designers had to work around the sequential nature of the DSP processor to make it suitable for real-time applications by using buffered and multi-clocking designs. But nowadays, the great advances in FPGA design technology minimized this design effort since it is capable of performing these complex algorithms in real time. This paper represents the design and implementation of an advanced radar signal processor for binary phase-coded pulsed radar incorporating a time range side lobes suppression technique on a single FPGA chip. The proposed hardware design includes a waveform generator, an advanced signal processing unit, and a built-in self-test (BIST). Design aspects and hardware details for each part is introduced thoroughly.

Sewage is water-carried wastes, in either solution or suspension that is intended to flow away from a community .It is more than 99.9% pure water and is characterized by its volume or rate of flow, its physical condition, its chemical constituents, and the bacteriological organisms that it contains. Domestic sewage causes a problem to environment so that the treatment and disposal of wastewater is not only desirable but also necessary (1) . In this study, we are concerned with the sewage treatment using different techniques. Two major techniques were applied for wastewater treatment, namely biological and chemical treatments. In biological treatment we constructed a pilot and bench scale for applying the two aerobic and anaerobic techniques to reduce some of the studied parameters as BOD, COD, nitrogen and phosphorous at the optimum condition from used time and sludges and compared these results with effluents from plant. In chemical treatment the jar test technique was used where coagulants matter as alum, ferric chloride and polymer are added by a suitable dose of each coagulants.