Abstract: A signal processor for processing multiple satellite signals is disclosed. The signal processor includes multiple acquisition channels operable for capturing tracking information from a first plurality of satellite signals synchronously according to multiple correlations between multiple reference coarse acquisition (C/A) codes and the first plurality of satellite signals.

Abstract: A signal processing system for demodulating navigation bits from a satellite signal is disclosed herein. The signal processing system includes a digital baseband processor for determining a boundary between two navigation bits in the navigation bits according to a first plurality of coarse acquisition (C/A) codes captured from the satellite signals, storing the first plurality of C/A codes, and demodulating a second plurality of C/A codes captured after determining the boundary to recover a first series of the navigation bits. The signal processing system further includes a complementary demodulating unit coupled to the digital baseband processor for demodulating the first plurality of C/A codes to recover a second series of the navigation bits.

Abstract: Disclosed herein is an Ultra-WideBand (UWB) ranging method using a narrowband interference suppression waveform. A transmission signal is transmitted to a target object. The transmission signal, reflected from the target object, is received. A template signal is generated by combining the narrowband interference suppression waveform and a channel estimation signal together. A correlation output signal is generated by convoluting the template signal and the received signal. A distance is calculated using a time delay when the correlation output signal has the maximum value thereof. The narrowband interference suppression waveform is any one of two waveforms that are expressed by the following Equation: wr1(t)=g(t??1/2)+g(t+?1/2) wr2(t)=g(t??2/2)?g(t+?2/2) where g(t) is a basic UWB pulse waveform, ?1=(N+1/2)f1, ?2=(N)/f1, N is an integer, and fi is the center frequency of a narrowband interference signal.

Abstract: A method of gasification burner online feeding for a coal-water slurry gasifier, where a coal-water slurry line and an oxidizer line are both protected by shield gas. The method may realize online, pressurized and continuous feeding of the gasification burners which are fixed after they stalled for other reasons than their own, thus greatly reducing the probability of accidental shutdown of gasifiers and improving the reliability of long-term service of the multi-nozzle opposed gasifier.

Abstract: The present invention relates to a novel cell co-culture system and methods of using the same for studying cellular interactions. The co-culture system comprises a cell culture container partitioned into multiple compartments by removable partition units/separating walls. Different cell types or materials can be placed and cultured in the various compartments. When the cells are ready for cell interaction studies, the removable walls separating two adjacent compartments are removed and cellular interaction can then be studied in a defined area, i.e. the area previously occupied by the bottom edges of the removable walls. The present invention thus provides a cell co-culture system that would set up a new and flexible platform for most cell interaction studies.